# How do I find #d/dxln (tan (x^2))#?

##### 1 Answer

Jan 28, 2015

I would use the Chain Rule.

In a way it is like those russian dolls called Matrioskas where you have a smaller doll inside another. To get to the last one you have to open the big ones first.

(Picture source: https://ghaiaesoterico.wordpress.com/2013/08/20/lenda-de-matrioska/)

Here the smallest doll is the function

To open in this case means to derive.

So you get:

Remember that: