Question

[2(cos 15 + i sin 15)]^6 =
a. 64i
b .64
C. O
d. -64I
​

Answer 1

Answer:

ans d. -64

Step-by-step explanation:

{2(cos 15+ i sin 15)}^6

={2(i)}^6...........sin+cos=1

=2i^6

=64×-1

=-64