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OpenStudy (tomektomeknyc):
How to solve this: If csc theta = 2 /√3, P theta is in Q 2, then cos theta/2 is equal to : a) -√3/2 b) √3/2 c) 3/4 d) - 3/4
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ganeshie8 (ganeshie8):
hint : in Q2, cos is negative
ganeshie8 (ganeshie8):
so you can directly strike off a and d options. answer is between b and c
ganeshie8 (ganeshie8):
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