Find the local min:max of a cubic curve by using cubic "vertex" formula,
sketch the graph of a cubic equation,

part1: https://www.youtube.com/watch?v=naX9QpCOUAQ
part2: https://youtu.be/3FiLDibOD3s
part3: https://www.youtube.com/watch?v=sMh_0jDoY7U


blackpenredpen…

This is a challenging problem that ultimately works out pretty nicely. A circle with radius 1 is tangent to two points of the parabola y = x^2. What is the area between the circle and the parabola? Watch the video for a solution.

Thanks to Chad Facciolo…

Just a quick and super informal video showing my reaction to blackpenredpen’s “One third of all positive integers are even” video. It’s quite surprising and I’m quite confused! Enjoy!

Here’s the link to the original video:

https://youtu.be/QBsFWaxsOV0

Which of the following cubic curve has no local min/max nor saddle pt? part1: https://www.youtube.com/watch?v=naX9QpCOUAQ part2: https://youtu.be/3FiLDibOD3s...

In this video I calculate the fractional and imaginary derivatives of e^(kx), cos(x), and sin(x). And you’ll see, there are many surprising and unexpected results! This video might change your way you think about the derivative of cos(x) and sin(x). Enjoy!…

Entre 3% a 6% da população mundial sofrem de desordem mental que afeta habilidade de adquirir destrezas matemáticas.