cosec^2theta/2-cot^2theta/2=?
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Answer:1/2
EXPLANATION:
cosec^2Ф /2 - cot^2Ф/2
= (cosec^Ф - cot^Ф) / 2
= 1/2 [using identity cosec^2Ф - cot^2Ф = 1]
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