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Question

Question: The value of \(\cos 9\theta - i\sin 9\theta\) is....

The value of cos9θisin9θ\cos 9\theta - i\sin 9\theta is.

A

0

B

27

C

26

D

None of these

Answer

0

Explanation

Solution

qq

p1/3=q1/3(1)1/3.α=q1/3p^{1/3} = - q^{1/3}(1)^{1/3}.\alpha = - q^{1/3}.