Problem #3: Evaluate the following curve integral: (a) zdz, where is the triangle from 1 to i to 1 to 1 . (b) z2dz, where is the upper half circle z=1,Im(z)>0, counterclockwise direction. (c) exp(2)exp(1)1dz, is the triangle from 1/2 to i/2 to 1/2 to 1/2