If sin A+sin^(2)A+sin^(3)A=1, then find ...

If `sin A+sin^(2)A+sin^(3)A=1`, then find the value of `cos^(6)A-4cos^(4)A+8 cos^(2)A`.

A

1

B

2

C

3

D

4

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The correct Answer is:

D

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