# Question #a254f

##### 2 Answers

Feb 16, 2018

It should be

#### Explanation:

Now use implicit differentiation to get

and use trigonmetry to get

# = 1/sqrt(1-x^2)#

Feb 17, 2018

A more visual yet same as the answer below

#### Explanation:

Create a triangle where

The missing side can be found using Pythagorean's Theorem

Differentiate both sides implicitly (W.R.T.

Divide

Rewrite in terms of

Since

Then

So