This question is to solve for number 4 ?

2'39\"???\"5'3!' Find all singularities in the complex plane and corresponding residues for z) = Evaluate counterclockwise: f0 jig-dz, C : |z 1| = 2. Evaluate counterclockwise: f0 x? : |z fl = 3. Evaluate the following integral: 10qu d. Evaluate the following integral: If; int. Evaluate the following integral: If; at}. Find the Cauchy principal value for If; ildm. 24 z\"-:'z+2