Blackpenredpen....!

About 20 results out of 7316 (0.23 seconds)
    

Channel Title : blackpenredpen

Views : 3521

Likes : 246

DisLikes : 2

Published Date : 2019-01-19T20:00:57.000Z

Check out Dr. P: https://youtu.be/OtfnscR_7Bk In this video, I show you how to take the derivative of sin^3(x) and sin(x^3) with the Chen Lu, and some books call this the "Chain Rule". Let me know which one is correct? Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 9037

Likes : 318

DisLikes : 120

Published Date : 2019-01-18T20:40:25.000Z

Check out Filip's Channel, Schrödinger Equation: https://youtu.be/qTvSz5rl_eU This is a Pre RMO problemin 2012, asked by Yogesh and solved by Filip. It was a cubic equation but we didn't need to solve for all the roots to solve the problem! Pause the video and try it yourself first. Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 22070

Likes : 862

DisLikes : 10

Published Date : 2019-01-14T20:07:41.000Z

Thanks to mike4ty4 for suggesting this fun problem, Integral of sqrt(lnx), Check out the imaginary error function erfi(x), https://youtu.be/zorcLisjRUI Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 17225

Likes : 1079

DisLikes : 9

Published Date : 2018-12-12T18:00:06.000Z

Uncut, real version, not staged. Who wings? Enjoy this video? Then check out another one by Dr. P https://youtu.be/XG3rOsATZZU ⭐️Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen ☀️support bprp on Patreon (there's a discount code to my Teespring store for everyone) https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 164502

Likes : 4536

DisLikes : 146

Published Date : 2018-10-03T15:56:18.000Z

Check out "the debate", integral of 1/x from -1 to 1, https://youtu.be/dHwrzLDmdT8 Improper integral playlist: https://www.youtube.com/playlist?list=PLj7p5OoL6vGyIT5IAyMu-FwE4eXPHyq2L Check out integral of cbrt(tan(x)), https://youtu.be/NO693oP7nHQ Type 2 improper integral, integral of 1/x^2 from -2 to 1, vertical asymptote on the interval of integration, improper integral that diverges, innocent looking integral, improper integral, calculus 2 improper integral integral of cbrt(tan(x)), the one on my t shirt, https://youtu.be/NO693oP7nHQ ⭐️Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 109523

Likes : 3045

DisLikes : 40

Published Date : 2017-09-21T07:38:52.000Z

watch i^i here: https://www.youtube.com/watch?v=ABk1HK2AR2E&t=1s , i-th root of i, i^(1/i), complex number, blackpenredpen, math for fun,
    

Channel Title : blackpenredpen

Views : 80202

Likes : 2209

DisLikes : 70

Published Date : 2018-12-28T01:45:28.000Z

No partial fractions in the usual sense, but we still managed to break down 1/(x^6+1) and got to the forms that we needed in order to integrate, enjoy!! Integral of 1/(x^6+1) via partial fraction & Gaussian Elimiation, https://youtu.be/j4lNnsTR0Ak Integral of (x^2+1)/(x^4+1), https://youtu.be/uNca8lvc6po Integral of 1/(x^4+1) from 0 to inf, https://youtu.be/eRS4TbBBbXo Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 78314

Likes : 2966

DisLikes : 98

Published Date : 2018-10-14T17:41:23.000Z

Infinitely nested Michael Jordans, https://youtu.be/zuUXb9wvBB4 Tejas's video: https://youtu.be/7YCHqzQcRHU Solving equation with infinitely nested square roots, infinitely alternating square roots, speed run math, Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 352874

Likes : 8082

DisLikes : 898

Published Date : 2017-08-17T22:46:54.000Z

believe in the math, not wolframalpha, To support my channel, you can visit the following links T-shirt: https://teespring.com/derivatives-for-you Patreon: https://www.patreon.com/blackpenredpen Thank you so much! Thank you for watching! Please subscribe and share my videos to help my channel grow! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 2926

Likes : 95

DisLikes : 2

Published Date : 2017-04-02T06:06:29.000Z

UC Berkeley Campus Tour, CAMPANILE, SATHER GATE, EVANS HALLS, UNIVERSITY LIBRARY, 4/1/2017, blackpenredpen
    

Channel Title : blackpenredpen

Views : 11921

Likes : 640

DisLikes : 3

Published Date : 2019-01-16T19:50:15.000Z

A classic differentiation rule, derivative of a function to another function power, i.e. derivative of f(x)^g(x). We will be using logarithmic differentiation, which is just implicit differentiation with log. Great Calculus 1 derivative problem. Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 39427

Likes : 1185

DisLikes : 20

Published Date : 2018-09-21T02:45:12.000Z

integral of sqrt(e^x) vs. integral of sqrt(e^x-1) Integral Battles file: https://blackpenredpen.com/calc1 #IntegralBattles You can help me grow my channel by supporting me on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My message for college freshmen (or just for everyone who has self doubt): https://youtu.be/ce2JRJnA_I0 **Check out my social medias** 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching, be sure to subscribe for more new math contents! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 240532

Likes : 5383

DisLikes : 137

Published Date : 2017-07-25T23:04:37.000Z

Are you wondering about (a+bi)^(c+di) now? Here's the video https://youtu.be/Z4PsLt9_ky8 complex^complex=real?, what is i^i?, i^i, e^(-pi/2), classic math problem, complex exponent, polar form of complex numbers, Check out my site & social media www.blackpenredpen.com https://twitter.com/blackpenredpen https://www.instagram.com/blackpenredpen/ Thank you for watching! Please subscribe and share my videos to help my channel grow! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 9069

Likes : 452

DisLikes : 6

Published Date : 2019-01-15T15:39:28.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! Integral battle between integral of (floor(x))^2 vs. integral of floor(x^2) Check out the sum of first n squares: https://youtu.be/OpA7oNmHobM Sum of first sqrt(n): https://math.stackexchange.com/questions/422559/what-is-sum-limits-i-1n-sqrt-i Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 57807

Likes : 1850

DisLikes : 84

Published Date : 2018-10-22T18:23:36.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! Solving x^x=2 using Lambert W function, properties of Lambert W functions, the inverse of x*e^x, graph of y=x^x, https://youtu.be/QzQmoOW8puM graph of y=x*e^x, https://youtu.be/YuLgC4syHNI Solving xe^x=1, https://youtu.be/EjUp_5X6io4 Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 100598

Likes : 2596

DisLikes : 41

Published Date : 2017-05-19T07:33:52.000Z

Check out the MOM: https://youtu.be/7bMxT1Rkscw Power series of 1/(1-x), 1+x+x^2+x^3+x^4+...=1/(1-x), Geometric Series, Best friend, www.blackpenredpen.com tags: calculus 2 series, power series examples, proof of 1/(1-x), proof of geometric series, proof of geometric series formula, geometric series examples, PROOF OF SUM OF INFINITE GEOMETRY SERIES
    

Channel Title : blackpenredpen

Views : 28075

Likes : 590

DisLikes : 6

Published Date : 2017-06-06T07:51:02.000Z

best friend: https://www.youtube.com/watch?v=Ux7vl6zXxj0&t=17s Using Best Friend, Power series of a rational function, www.blackpenredpen.com
    

Channel Title : blackpenredpen

Views : 18190

Likes : 703

DisLikes : 4

Published Date : 2018-09-27T20:55:43.000Z

In this video, we will investigate f(x)=e^(-x^2), we will have its domain, horizontal asymptote, first/second derivative of e^(-x^2), local max, point of inflections, and finally we will graph y=e^(-x^2), 高斯積分: https://youtu.be/QdYsbx0SVKA And up next, integral of e^(-x^2): https://youtu.be/jkytxdedxhU Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 10222

Likes : 395

DisLikes : 4

Published Date : 2018-12-23T08:53:34.000Z

This is NOT hard because it's easy : ) #CircularReasoning Converge or diverge: series of n^n/3^(n^2) by the root test Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 22974

Likes : 995

DisLikes : 10

Published Date : 2018-11-09T20:43:55.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! Review disc method, https://youtu.be/BeVQKkUJCVg Review surface area, https://youtu.be/A_vSMlXH3sg Integral of 1/x from 1 to inf diverges, *here later* Finite Volume but Infinite Surface Area? Check out Gabriel's Horn here: https://brilliant.org/wiki/gabriels-horn/ ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 12130

Likes : 746

DisLikes : 4

Published Date : 2019-01-04T11:00:05.000Z

In this video, we derive the formulas we need to compute the Fourier coefficients for Fourier Series. Enjoy! Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 16725

Likes : 730

DisLikes : 8

Published Date : 2018-11-02T18:34:55.000Z

Graph of y=x*e^x, https://youtu.be/YuLgC4syHNI Solve x+e^x=2 & x^2*e^x=2 here: https://youtu.be/GKdEbFO-5lY Derivative of W(x), https://youtu.be/LyEPB6Wxc_U ⭐️Please subscribe for more math content! Solving x^x=2 using Lambert W function, properties of Lambert W functions, the inverse of x*e^x, domain of lambert w function, ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ #LambertWfunction #tetration Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 205831

Likes : 5921

DisLikes : 114

Published Date : 2017-10-06T07:51:02.000Z

Integral of x^i, i^i , https://www.youtube.com/watch?v=ABk1HK2AR2E sqrt(i), https://www.youtube.com/watch?v=Z49hXoN4KWg&t=2s integral of sin(ln(x)) with integration by parts, https://www.youtube.com/watch?v=o2x4FX5ZYUw Check out my site & social media www.blackpenredpen.com https://twitter.com/blackpenredpen https://www.instagram.com/blackpenredpen/ Thank you for watching! Please subscribe and share my videos to help my channel grow! blackpenredpen | 曹老師 tags, complex exponent, complexifying the integral, integral of x^i, integral of sin(ln(x)), integral of cos(ln(x)), euler's formula, integral for fun, blackpenredpen integral, bprp
    

Channel Title : blackpenredpen

Views : 94868

Likes : 2761

DisLikes : 61

Published Date : 2018-08-19T21:27:28.000Z

derivative of tetration of x, derivative of (x↑↑3), derivative of double up arrows, derivative of tetration of x, Knuth Arrow Notation, graham Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 T-shirt: https://teespring.com/derivatives-for-you Patreon: https://www.patreon.com/blackpenredpen Comment #YAY down below & your comment might be featured in my future videos!!! Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com/calc1 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching & subscribing! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 93042

Likes : 2523

DisLikes : 92

Published Date : 2018-09-17T08:57:55.000Z

A pretty hard integral by integration by parts. Integral of x^2/(x*sin(x)+cos(x))^2, DI Method explained here: https://youtu.be/matDV3XL2J8 This is also an example that shows why I don't teach my students the "LIATE method"., IIT JEE EXAM PREP PROBLEM, Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 Comment #YAY down below & your comment might be featured in my future videos!!! Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com/calc1 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching & subscribing! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 30295

Likes : 1667

DisLikes : 38

Published Date : 2018-12-31T08:36:52.000Z

Yes -1/12, Ramanujan Summation: https://youtu.be/U_g_OZLt4OU Sum of all n^2, https://youtu.be/UsSC5v0o2Aw Be sure to subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 10024

Likes : 412

DisLikes : 4

Published Date : 2018-10-01T08:03:31.000Z

Converting between bases DIRECTLY, Multiplication table in base 7: https://youtu.be/Z0PdSyS72Ak Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 9604

Likes : 413

DisLikes : 3

Published Date : 2018-07-14T10:19:53.000Z

In this video, I show you how to find an equation of the line that passes through the point (5,2) and cuts off the least area from the first quadrant by using calculus (critical value and the 2nd derivative test). This is a very common calculus 1 optimization problem and be sure you try first before you watch my solution. Please subscribe and share my videos to help my channel grow! 😃 My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 www.blackpenredpen.com 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 38610

Likes : 1902

DisLikes : 31

Published Date : 2018-12-28T21:09:24.000Z

Check out Bose Integral: https://youtu.be/ctG4YgMs74w Check out NOT -1/12, https://youtu.be/6FTwMUL69u0 Sum of 1/n^2 by a Gucci Integral: https://youtu.be/5-pXwWNcsbc Sum of n^2, https://youtu.be/UsSC5v0o2Aw Ramanujan Summation: https://en.wikipedia.org/wiki/Ramanujan_summation Ramanujan summation in details: https://hal.univ-cotedazur.fr/hal-01150208v2/document Sum of all natural numbers: by 3b1b: https://youtu.be/sD0NjbwqlYw by Numberphile: https://youtu.be/w-I6XTVZXww by Mathologer: https://youtu.be/jcKRGpMiVTw Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 3237

Likes : 154

DisLikes : 1

Published Date : 2019-01-12T22:53:12.000Z

So you think you can take the derivative (practice#3) for file see: https://www.blackpenredpen.com/calc1 for playlist: https://www.youtube.com/playlist?list=PLj7p5OoL6vGx7PlpS44o3SSx4zLtB4F7B Product rule with square root and inverse sine functions, Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 4226

Likes : 190

DisLikes : 1

Published Date : 2019-01-11T02:45:04.000Z

a limit that represents derivative, definition of derivative, limit definition of derivative, Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 24140

Likes : 206

DisLikes : 16

Published Date : 2017-04-29T19:34:12.000Z

partial fraction for 1/(x(x^2+1)), use this to integrate or to do inverse laplace transform! blackpenredpen
    

Channel Title : blackpenredpen

Views : 15888

Likes : 717

DisLikes : 7

Published Date : 2018-10-04T17:30:58.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! What Are Continued Fractions? Continued Fractions, Write sqrt(2) as a continued fraction, infinite simple continued fraction ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 35178

Likes : 1401

DisLikes : 14

Published Date : 2018-12-04T05:15:59.000Z

Yes, from the producer of "sin(z)=2", today we have sin(z)=i, enjoy!!!! Last year: sin(z)=2, https://youtu.be/3C_XD_cCeeI Complex Definitions of sine and cosine, https://youtu.be/CjQTWtW_x9o ⭐️Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 239931

Likes : 6761

DisLikes : 175

Published Date : 2017-11-11T23:45:53.000Z

Do math for fun with brilliant.org, https://brilliant.org/blackpenredpen/ , first 200 people to sign up will get 20% off your subscription, and you can support my channel too! So good! , To support my channel, you can visit the following links T-shirt: https://teespring.com/derivatives-for-you Patreon: https://www.patreon.com/blackpenredpen Thank you so much! integral of ln(x) from 0 to 1, *coming soon* , hard limit problem, hard calculus 1 limit problem, solve limit with integration, solve limit with Riemann Sum, Riemann sum and integral, showing series of n!/n^n converges by using the root test, limit of (n!/n^n)^(1/n) as n goes to infinity, blakcpenredpen, math for fun
    

Channel Title : blackpenredpen

Views : 10062

Likes : 442

DisLikes : 5

Published Date : 2018-09-13T01:20:11.000Z

Integral of 1/(sqrt(x)+cbrt(x)), Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 My patreon page: https://www.patreon.com/blackpenredpen My t-shirt: https://teespring.com/derivatives-for-you Comment #YAY down below & your comment might be featured in my future videos!!! Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com/calc1 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching & subscribing! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 12827

Likes : 564

DisLikes : 8

Published Date : 2018-12-07T22:12:01.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! Taylor series for cos(x), https://youtu.be/zgwUMJOXwDM Best Friend Tee (with all the series friends): https://teespring.com/bestfriend1over1-x Integral of cos(x^2) from 0 to 1, Simpson's rule for approximating integral, approximating integrals by using Taylor series, Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 38830

Likes : 1616

DisLikes : 28

Published Date : 2018-12-08T21:10:36.000Z

When I said this is the limit, I mean this is "THE LIMIT"!!!!! Watch to find out why! Be sure to share this video so we can all avoid circular reasoning! Proof of the derivative of sin(x), https://youtu.be/j1n6AMuMQso No, we cannot use Taylor series for sin(x) since we need derivative as well. https://youtu.be/zgwUMJOXwDM The limit as x goes to 0 of sin(x)/x , Geometric proof of sin(x)/x goes to 1 as x goes to 0, don't use l'hospital's rule, avoid circular reasoning, Squeeze theorem example, ⭐️Please subscribe for more math content! ☀️support bprp on Patreon: https://www.patreon.com/blackpenredpen Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for supporting! You're awesome and I know it! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 53096

Likes : 1506

DisLikes : 36

Published Date : 2018-08-08T23:53:39.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! Newton's Method: https://brilliant.org/wiki/newton-raphson-method/ In this video, I will show your 3 really cool math things: Newton's Method, Omega Constant and also the Lambert W function! This video took me a while to prepare and to record, be sure you watch till the end. #yay #NewtonsMethod #OmegaConstant #LambertWfunction #W(1) #bprp Graph y=x*e^x, https://youtu.be/YuLgC4syHNI Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 T-shirt: https://teespring.com/derivatives-for-you Patreon: https://www.patreon.com/blackpenredpen Comment #YAY down below & your comment might be featured in my future videos!!! My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 www.blackpenredpen.com 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 93530

Likes : 2470

DisLikes : 65

Published Date : 2017-07-24T22:30:01.000Z

Proving log base 2 of 3 is irrational, https://youtu.be/MW3kNkM-AUE classic problem for fun, irrational^irrational=rational? irrational^irrational=rational?, math for fun, sqrt(2)^sqrt(2) is irrational, sqrt(2) is irrational, root 2 is irrational, blackpenredpen
    

Channel Title : blackpenredpen

Views : 9726

Likes : 615

DisLikes : 3

Published Date : 2019-01-05T19:51:38.000Z

Fourier Series of e^x from -pi to pi, featuring Sum of (-1)^n/(1+n^2) Fourier Series Formulas: https://youtu.be/iSw2xFhMRN0 Integral of e^(ax)*cos(bx), integral of e^(ax)*sin(bx), https://youtu.be/E_ecLWj_rcM #Fouryay #YayYayYayYay Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 44222

Likes : 1680

DisLikes : 21

Published Date : 2018-09-10T09:19:33.000Z

Start learning today, click https://brilliant.org/blackpenredpen/ to check out Brillant.org. First 200 people to sign up will get 20% off your annual premium subscription! This is why the area is t/2 https://youtu.be/h-gKfQkHQSA read more on hyperbolic functions: https://brilliant.org/wiki/hyperbolic-trigonometric-functions/ Please subscribe for more calculus tutorials and share my videos to help my channel grow! 😃 Comment #YAY down below & your comment might be featured in my future videos!!! Guess what my first job was! https://youtu.be/RSCzXXeqGbU , My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 https://blackpenredpen.com/calc1 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching & subscribing! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 37099

Likes : 1236

DisLikes : 15

Published Date : 2018-01-13T18:00:03.000Z

I will just call this "THE CALC2 REVIEW" since this involves sooooo many skills from calc 2. I integrate a power series, did integration by parts (with the DI method, of course), used the L'Hoptial's Rule, Partial fractions, saw a telescoping series, and ended up with some pi^2/6. this explains "build up the power" part: https://www.youtube.com/watch?v=pYUTZD1GVyU integral of ln(x)/(x-1), also uses series, https://youtu.be/bVCv8RrQOSs , sum of the reciprocals of squares, by Max. Z: https://youtu.be/m2o27s1cq8M , by Dr. Peyam: https://youtu.be/erfJnEsr89w , And here's the Fubini's Theorem, https://en.wikipedia.org/wiki/Fubini%27s_theorem . In fact I made a mistaking quoting it to switch the integration and the summation. We can switch the integration and the summation because of the power series is uniformly convergent. Thus, the integral of the sum is the sum of the integrals, even with infinitely many terms. HEHEHE, ENJOY THIS RIDE! Integral of ln(x)*ln(1-x) from 0 to 1, blackpenredpen, Math for fun,
    

Channel Title : blackpenredpen

Views : 3668

Likes : 160

DisLikes : 2

Published Date : 2019-01-12T22:53:28.000Z

So you think you can take the derivative (practice#3) for file see: https://www.blackpenredpen.com/calc1 for playlist: https://www.youtube.com/playlist?list=PLj7p5OoL6vGx7PlpS44o3SSx4zLtB4F7B Please subscribe for more math content! Check out my T-shirts & Hoodies: https://teespring.com/stores/blackpenredpen support bprp on Patreon (there's a discount code to bprp Teespring store for everyone) https://www.patreon.com/blackpenredpen I create my site www.blackpenred.com on Wix, give it a try: http://wixstats.com/?a=25754&c=124&s1= Check out my site & social media 😃 https://blackpenredpen.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for your support! blackpenredpen | 曹老師
    

Channel Title : blackpenredpen

Views : 220372

Likes : 7106

DisLikes : 177

Published Date : 2018-07-03T09:09:08.000Z

Check out The Lambert-W function with Fematika, https://youtu.be/LkJAZXMAKz0 Also try Pythagorean's Triples https://youtu.be/n6vL2KiWrD4 , Making exponent and base commute! x^y=y^x Read more on Wiki: https://en.wikipedia.org/wiki/Equation_x%CA%B8%3Dy%CB%A3 Please subscribe and share my videos to help my channel grow! 😃 Comment #YAY down below & your comment might be featured in my future videos!!! My simple setup: 😃 https://youtu.be/IKk7k-CMttE , Check out my site & social media 😃 www.blackpenredpen.com 😃 blackpenredpen@gmail.com 😃 https://twitter.com/blackpenredpen 😃 https://www.instagram.com/blackpenredpen/ Thank you for watching! blackpenredpen | 曹老師

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