驗證網址www.khanacademy.org安全性

Integral of tan x | Reverse chain rule | Khan Academy

It might not look like it at first, but the reverse chain rule let's us find the integral of tan(x) ... They are the same thing and when Sal refers to the reverse chain rule it's the same as "doing u-substitution in your head". In general to start you sho...

網址安全性掃描由 google 提供