### Home > CALC3RD > Chapter Ch9 > Lesson 9.4.1 > Problem 9-109

9-109.

Examine the integrals below. Consider the multiple tools available for integrating and use the best strategy for each part. Evaluate each integral and briefly describe your method.

Use substitution. Let

.

This integral can be evaluated by sketching the graph and using geometry.

Use integration by parts.

Let

and.

Use substitution. Let

.