Select and write the correct answer from...

Select and write the correct answer from the given alternatives in each of the following: The complex number sin x + icos 2x and cos x - i sin 2x are conjugate to each other for

A

a) `x = npi`

B

b) x = 0

C

c) `x = (2n + 1) pi / 2`

D

d) no value of x

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