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What is the value of (4//3) cot^2(pi//6)...

What is the value of `(4//3) cot^2(pi//6) + 3cos^2(150^@) - 4 cosec^2 45^@+8 sin (pi//2)`?

A

`(25)/(4)`

B

1

C

`-(7)/(2)`

D

`(13)/(2)`

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The correct Answer is:
A
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