Number of roots of cos^(2) x + (sqrt(3) ...

Number of roots of `cos^(2) x + (sqrt(3) + 1)/( 2) sin x - (sqrt(3))/(4) - 1 =0 ` which lie in the interval `[- pi, pi]` is

A

2

B

4

C

6

D

8

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The correct Answer is:

B

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