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Mathematics, 18.10.2021 23:10 angelequej1167
Prove [(1+sinθ)/(1-sinθ)] - [(1-sinθ)/(1+sinθ)] =4tanθsecθ
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Prove [(1+sinθ)/(1-sinθ)] - [(1-sinθ)/(1+sinθ)] =4tanθsecθ...
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