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Prove that (cot A-cos A)/(cot A+cos A)...

Prove that
`(cot A-cos A)/(cot A+cos A)=(cos^2 A)/(1+sinA)^2`

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Prove that (cot A-cos A)/(cot A+cos A)=(cos ecA-1)/(cosecA+1)

Prove that , (Cot A-cos A)/(cot A+cos A)=(cosec A-1)/(cosec A+1)

Prove that (cot A-cos A) / (cot A + cos A) = (cos ecA-1) / (cos ecA + 1)

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(cot A cos A)/(cot A+cos A)=(cot A-cos A)/(cot A cos A)

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