please explain thoroughly, I want to understand it.

f (z) is an entire analytic function with derivatives f', f" etc., antiderivatives F(z), etc. Below, I is the unit circle | z| = 1 while a and 3 are complex numbers whose various natures will be specified in each part. In each case, you are to compute f (z ) IT (z - a)(z-B) dz expressing your answer in terms of a & B and f, f', F, .. . evaluated at the appropriate argument. In at least one case, the problem is ill defined in which case you are to state "ill defined". watch your factors of 2mi. Part A |a| > 1, 18| > 1, a # 3. 1, a * B. Part B Ja = 1, 18| = 1, a * B. Part C Ja