If alpha is a non-real root of x^(7) = 1...

If `alpha` is a non-real root of `x^(7) = 1` then `alpha(1 + alpha) (1 + alpha^(2) + alpha^(4)) =`

A

2

B

-1

C

1

D

-2

Verified by Experts

The correct Answer is:

B

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