Question

Question #341cf

Answer 1

Look below

Explanation:

First, u need to know the chain rule `f'(g(x)) * g'(x)`

now set `f(x) = sec(x)` and `g(x) = tan(x)`

the `\frac{d}{dx} sec(x) = secx tanx`

the `\frac{d}{dx} tan(x) = sec^2(x)`

using the chain rule

`sec(tan(x))tan(tan(x))*sec^2(x)`