Math, asked by sriramkidambi1997, 1 year ago

(cosecA-cotA)wholepower2 = 1-cosA ÷1+cosA​

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Answered by duragpalsingh
1

Hey there!

L.H.S:

= ( cosec Ф - cot Ф)²

= ( 1 / sinФ  + cosФ/sinФ)²

= (1 - cosФ)² / sin² Ф    { ∵ sin²Ф = 1 - cos²Ф}

= (1 - cosФ)² / ( 1 - cos²Ф)

= [ (1 - cosФ) ( 1 - cosФ) ] / ( 1 + cos Ф) ( 1 - cosФ))

= ( 1 - cosФ) / ( 1 + cosФ)

= R.H.S

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