(A)(C).(D) You get .(B).(B) Evaluate , which equals .(E).(C) If . When ; when . The integral is equivalent to .
(D) Evaluate . This equals . (A)(C).(D) You get .(B).(B) Evaluate , which equals .(E).(C) If . When ; when . The integral is equivalent to .
(D) Evaluate . This equals .