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11-97.
  1. Examine the integrals below. Consider the multiple tools available for integrating and use the best strategy. After evaluating each integral, write a short description of your method. Homework Help ✎

The Reverse Chain Rule can be used here, but this is an improper integral, so be sure to use a limit.

Let u = tan(x).

Use partial fraction decomposition.

Use substitution twice.

Let u = x2. Then du = 2x.

Let v = cos(u). Then dv = –sin(u)du.