### Home > CALC > Chapter 5 > Lesson 5.5.1 > Problem 5-156

5-156.

Find the derivative of each of the following functions: Homework Help ✎

*f*(*x*) =*x*^{2}tan(*x*)*f*(*x*) = (2*x*+ l)(3*x −*l)^{3}

Use the Product Rule.

*f* '(*x*) = 2*x* tan *x* + *x*^{2} sec^{2} *x*

Combine the Product Rule with the Chain Rule.