### Home > APCALC > Chapter 7 > Lesson 7.4.4 > Problem 7-221

7-221.

**Multiple Choice: ** Homework Help ✎

First use -substitution:

Then use integration by parts:

Let and

*.*

Then

*df*= __________ and

*g*(

*x*) = ____________.

7-221.

**Multiple Choice: ** Homework Help ✎

First use -substitution:

Then use integration by parts:

Let and

Then