Math, asked by vineet15, 1 year ago

1-cosA/sinA=sinA/1+cosA

Answers

Answered by Anonymous
1
We know that , Sin²A = 1 - cos²A -------(1)

RHS

sinA / 1 + cosA

» sinA / 1 + cosA × 1 - cosA / 1 - cosA

» sinA - sinA.cosA / 1 - cos²A

» sinA - sinA.cosA / sin²A ( from (1) )

» sinA / sin²A - sinA.cosA / sin²A

» 1 / sinA - cosA / sinA

» 1 - cosA / sinA

» LHS

hence, proved.
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