CosecA-1 / cosecA+1 = (cos/1+sinA)^2
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write cosec as 1/sinA in both numerator & denominator then, further simplify to get the RHS. If you still didn't get it, reply to me I'll send you solution for it.
ronishraja123:
Still stuck pls send the solution
i am done with my answer, but I'm not finding any option here to send the pic of it
multiply by 1+sinA in both numerator and denominator once you've got expression in sinA
Answered by
23
Divide and multiply by (1+sinA)
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