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`tan^(-1)""(1)/(sqrt(x^(2)-1)),|x|gt1` |
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Answer» `tan^(-1)""(1)/(sqrt(x^(2)-1))" "" माना "{:(x=cosectheta),(impliestheta=cosec^(-1)x):}` `=tan^(-1)(1)/(sqrt(cosec^(2)theta-1))=tan^(-1)((1)/(cottheta))` `=tan^(-1)(tantheta)=theta=cosec^(-1)x` |
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