- #1

navneet9431

Gold Member

- 107

- 9

## Homework Statement

I am facing problem in applying the chain rule.

The question which I am trying to solve is,

" Find the second derivative of

## Homework Equations

## The Attempt at a Solution

So, differentiated it the first time,

And now to find the second derivative I differentiated it once again,

so,

=>

But this is a wrong answer.

Please tell me where am I doing the mistake in applying the chain rule?

I will be thankful for help!