### Home > CALC > Chapter 7 > Lesson 7.4.3 > Problem 7-199

7-199.

Rewrite properly (with limits) before evaluating.

Use integration by parts after you rewrite the integrand as arctan(*x*).

Let *f*(*x*) = arctan(*x*) and *dg* = *dx*.

Then *df* = _______ and *g*(*x*) = _______.

Warning: You will have to use *U*-substitution to evaluate the integral.