Math, asked by rair70362, 5 hours ago

cosa×√1+cot²a=√cosec²a-1​

Answers

Answered by sandy1816
3

cosa \sqrt{1 +  {cot}^{2}a }  \\  = cosa \sqrt{ {cosec}^{2} a}  \\  = cosa \: coseca \\  =  \frac{cosa}{sina}  \\  = cota \\  =  \sqrt{ {cot}^{2}a }  \\  =  \sqrt{ {cosec}^{2} a - 1}

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