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If A is in the third quadrant and tan A ...

If A is in the third quadrant and tan A = `(sqrt(7))/(3)` then 18 - 16 `sin^(2)^(A)/(2)-32 sin""(A)/(2)sin""(5A)/(2)` =

A

-6

B

11

C

5

D

10

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The correct Answer is:
B
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