# maths(trigonometry)

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prove that
sinA-cosA+1/sinA+cosA-1=1/secA-tanA

• maths(trigonometry) -

It is not clear whether the denominator is sin A or (sin A + cos A) or (sin A + cos A -1) on the left side. It is also not clear whether the denominator is sec A or (sec A - tan A) on the right side. Please use parentheses to clarify the meaning of typed equations. Otherwise we can't help you.

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