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