QUIZ 3.2

1. Function sin z is periodic, of period 2 i.
(a) True  ; (b) False   .

2. (cos z) = sin z
(a) True   ; (b) False   .

3. sin z = 0 z = n (n Z).
(a) True   ; (b) False   .

4. If z = x + iy then | sin z |2 = sin2 x + sinh2 y.
(a) True   ; (b) False   .

5. If z = x + iy then | sin z | | sin x |.
(a) True   ; (b) False   .


Notes