Page 169 of the textbook says that if | f(z)| M for all z on a (piecewise smooth) curve C with length L, then f M . L. Now let C' be the upper half circle |2| = R > 2, Imz > 0, show that 222-5 dz = 0. limo (2 + 1) (2 + 4) 1/2+0+0=a S