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Mathematics, 19.10.2020 14:01, rafeychoudhry4571
If tan 1/2x = cosec x - sin x , Prove that (tan 1/2)^2 = -2 ±√5
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If tan 1/2x = cosec x - sin x , Prove that (tan 1/2)^2 = -2 ±√5...
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