Math, asked by maheshpingle526, 2 months ago

P.T. √1- COSA 1+ Cos A = Cosec A- cotA​

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Answered by sandy1816
0

 \sqrt{ \frac{1 - cosA}{1 + cosA} }  \\  =  \sqrt{ \frac{1 - cosA}{1 + cosA} \times  \frac{1  - cosA}{1 - cosA}  }   \\  =  \sqrt{ \frac{( {1 - cosA})^{2} }{ {sin}^{2}A } }  \\  =  \frac{1 - cosA}{sinA}  \\  = cosecA - cotA

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