(cos 5θ - i sin 5θ)2 is same as

1.	(cos 5θ - i sin 5θ)2 is same as
A.	cos 10θ + i sin 10θ
B.	cos 25θ - i sin 25θ
C.	(cos θ + i sin θ)-10
D.	(c0s θ - i sin θ)-10
Answer» D. (c0s θ - i sin θ)-10

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(cos 5θ - i sin 5θ)2 is same as

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