DO BOTH PART A & B. IF YOU CAN"T PLEASE DON"T DO
ONLY ONE AND LEAVE...
22 +1 2z 5-a. Show that the substitution 2-eit) yields cos θ cos θ dθ-0 ( - Don't forget to relate dθ to d.) This method of course works for more inter b. Show using part a. and the residue theorem that esting integrals of complicated functions of cosines and sines.