QUIZ 3.4
1. (z i) = iz i-1. (a) True ; (b) False .
2. The principal value of i i is exp(i/2). (a) True ; (b) False .
3. If z 0 and k is real, then | z k | = | z |k. (a) True ; (b) False .
4. i 1/3 (a) is single-valued ; (b) has 3 values ; (c) has infinitely many values .
5. z n, (n Z) (a) is single-valued ; (b) has n values ; (c) has infinitely many values .
Notes
(z i) = iz i-1.
i/2).
0 and k is real, then | z k | = | z |k.
Z)