Math, asked by sam1344, 2 months ago

urgent pls answer cota/coseca-1+cota/coseca+1=2seca prove​

Answers

Answered by sandy1816
0

 \frac{cota}{coseca - 1}  +  \frac{cota}{coseca + 1}  \\  \\  = cota( \frac{coseca + 1 + coseca - 1}{ {cosec}^{2}a - 1 } ) \\  \\  = cota( \frac{2coseca}{ {cot}^{2} a} ) \\  \\  = 2 \frac{coseca}{cota}  \\  \\  = 2seca

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