Asked by Agastya
Prove that [sinA/(1-cosA)-(1-cosA)/sinA]*[cosA/(1+sinA)+(1+sinA)/cosA]=4cosecA
I the second part as 2 secA
I the second part as 2 secA
Answers
Answered by
Steve
sinA/(1-cosA) = cot(A/2)
that should help.
you are correct on the 2nd term.
that should help.
you are correct on the 2nd term.
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