question shows below:

3. (20 points) Compute the following integrals: (a) (6 points) 1 [012 72 where \"y is the curve from 1 z' to 1 +i parameterized by 2(t) : (3152 2) + it, where 1 g t g 1. (b) (9 points) Using residue formula compute the principal value of the integral 0 1 d. A (1+m2)3 '3 You should provide the limit arguments carefully. (c) (5 points) 1 f7 22 sin (2) dz, where *y is the unit Circle 01(0) with positive orientation