Cos@/(1+tan@) + sin@/(1-cot@) = sin@ + cos @ Need help in this proving question! Please help
Last edited by ZGOON; September 10th 2012 at 07:03 PM.
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Originally Posted by ZGOON Cos@/(1+tan@) + sin@/(1-cot@) = sin@ + cos @ Need help in this proving question! Please help Sorry, not an identity but rather can be an equation with few points, i.e., only valid at certain points:
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