QUIZ 7.1
1. Function has two isolated singularities. (a) True ; (b) False .
2. If f has residues K1 at z = 1 and K2 at z = 3i, C is | z | = 2 once positively, then f(z) dz = 2i.(K1 + K2). (a) True ; (b) False .
3. With C as in Q2, = 2i. (a) True ; (b) False .
4. If f(z) = 3/z2 1/z + 2 + z - 3z2 for all z > 0, then f(z) dz = 1. (C as in Q2.) (a) True ; (b) False .
Notes