# How do you find the derivative of #y=tan^2(3x)#?

##### 1 Answer

Aug 1, 2014

1.)

This is a problem that will involve a lot of chain rule. I will first show you what the derivative looks like and then explain where each part comes from:

2.)

The

Next, chain rule dictates that we multiply this with the derivative of the inside function

And lastly, we apply chain rule again, multiplying the entire thing by

The entire string can be prettified a bit by simplifying and rewriting in terms of

3.)