# What are the critical points of #f (x) = log_7(1+x^2)#?

##### 1 Answer

Nov 16, 2015

#### Explanation:

We have that

So we have

Calling

And so,

A the critical points are those where the derivative is 0, or

The denominator will never become zero, so we'll never have any points the function isn't differentiable (in the positive reals), so

The function has 1 critical point, that is