Derivative of natural logarithm | Taking derivatives | Differential Calculus | Khan Academy

Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits.

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[HellaPerformance]

I think it's funny that you just blew past that chain rule like it was nothing but then acted like replacing y with ln(x) was the most confusing thing in the world.

[thavon]

this man is the sole reason why I'm passing calc lol

[chuckbatson]

Fatboy Slim (1998): praise u
Sal Khan (2014): praise e

[pedrov]

i beg to differ, we are only here to admire e

[tune_m]

0:52 Why does he take the derivative wrt x on both sides and suddenly take the derivative wrt y on the left side? Is d/dx on the left hand side a typo?

[EkalavyaAcademy]

please explain differentiability of
f(x)=|log|x||

[mangilothevii]

what is the Derivative of len(x) inverse (arclen(x))

So this is what Luke Walton does in the offseason

[JazminZenteno]

but why do we replace e^x with e^y? like why y? lol