maths

Prove
SinA/1-CosA = CosecA + CotA

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1. pl help

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2. Assuming all are using angle A,

sin/(1-cos)
= sin(1+cos)/(1-cos)(1+cos)
= sin(1+cos)/(1-cos^2)
= sin(1+cos)/sin^2
= (1+cos)/sin
= csc+cot

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