Math, asked by taiyabayasmin1234, 1 year ago

prove that, (cosecA-cotA)²=1-cosA/1-cosA

Answers

Answered by hafizur0210

3

Answer:

L.H.S.=(cosecA-cotA)²

=[1/sinA-cosA/sinA]²

=(1-cosA/sinA)²

=(1-cosA)²/Sin²A

=(1-cosA)²/1-cos²A

=(1-cosA)(1-cosA)/(1+cosA)(1-cosA)

=1-cosA/1+cosA

=R.H.S.

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