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Question
Prove the following identity :
`(1 + sinA)/(1 - sinA) = (cosecA + 1)/(cosecA - 1)`
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Solution
LHS = `(1 + sinA)/(1 - sinA)`
RHS = `(cosecA + 1)/(cosecA - 1) = (1/sinA + 1)/(1/sinA - 1)`
= `(1 + sinA)/(1 - sinA)`
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