Calculate the complex integral (10 points) (1) $ dz z - 3 = R (R is not determined); (2 points) Z-TC ez (2) $ dz, lz - 3| = 1; (2 points) z(z-2i) (3) $ 2z-1 dz, |z| = 2; (2 points) zz-Z dz (4) $ z = 8; (4 points) (z-1)(z-3) (z-5) (z-7)