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The number of solutions of the equation ...

The number of solutions of the equation `cos^2(x+pi/6)+cos^2x-2cos(x+pi/6)dotcospi/6=sin^2pi/6` in interval `((-pi)/2,pi/2)` is_________

A

0

B

1

C

2

D

3

Text Solution

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The correct Answer is:
C
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