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" 7."(tan theta)/(sec theta-1)+(tan thet...

" 7."(tan theta)/(sec theta-1)+(tan theta)/(sec theta+1)=2csc theta

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(tan theta)/(sec theta-1)+(tan theta)/(sec theta+1)=2cos ec| theta

Prove that (tan theta)/(sec theta-1)+(tan theta)/(sec theta+1)=2 "cosec"theta.

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Prove that : (tan theta)/(sec theta -1) + (tan theta)/(sec theta + 1) = 2 cosec theta

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(tan theta)/(sec theta+1)+(sec theta+1)/(tan theta)=2cos ec theta

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