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OpenStudy (anonymous):
PROVE THAT (cosec theta / cosec theta - 1) + (cosec theta / cosec theta + 1) = 2 sec^2 theta
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OpenStudy (anonymous):
cosec(cosec +1) + cosec(cosec - 1) 2 cosec^2 --------------------------------- = -------------------- cosec^2 - 1 cosec^2 -1 = 2 ---------------------- = 2 sec^2 1 - sin^2
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