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)dotcos(pi/6)=sin^2(pi/6)`
in interval `((-pi)/2,pi/2)` is_________

A

(a) 0

B

(b) 1

C

(c) 2

D

(d) 3

Verified by Experts

The correct Answer is:

C

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