Find if the improper integral converges/diverges.If it converges, locate its exact value/answer. Report the letterof themainmethod of integration used.Display all the steps.

Letter of method/technique:

A. Basic integration formula

B. Traditional u-substitution

C. Convenient substitution to convert to inverse trig formula

D. Integration by parts

E. Trig integral (u-sub based on powers and/or trig identities)

F. Trig substitution

G. Partial fraction decomposition