If the determinant |(cos2x, sin^2x,cos4x...

If the determinant `|(cos2x, sin^2x,cos4x),(sin^2x , cos2x,cos^2x),(cos4x,cos^2x,cos2x)|` is expanded in powers of `sinx` , then the constant term in the expansion is :

A

1

B

0

C

-1

D

2

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The correct Answer is:

C

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