Question

I have an AP calculus question and tell 12th grade math about Derivatives a picture is included

Answer 1

Given:

`f(x)=\cos^(-1)x`

At x

`=(\pi)/(2)`

Required:

To find the equation of the tangent line.

Step-by-step explanation:

First we have to find the y-coordinate where

`x=(\pi)/(2)`

Now