Examine the following integrals. Consider the multiple tools available for evaluating integrals and use the best strategy for each. After evaluating the integral, write a short description of your method.
To make this problem quicker to solve, remember that
is an even function.
Notice that this is an indefinite integral. Don't forget the
. (Euler's number) and the derivative of ln is .
Think! Trig identity. Simplify the integrand before you integrate.