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2sina0-118. Prove that -tane-cotθcosesineOR |
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Answer» 2sin²x-1/cosx*sinx = sinx/cosx - cosx/sinx 2sin²x-1/cosx*sinx = sin²x-cos²x/sinx*cosx 2sin²x-cos²x-sin²x = sin²x-cos²x = 0 Hence proved |
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