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intsqrt((e^x+1)/(e^x-1))dx (A) ln (e^(...

`intsqrt((e^x+1)/(e^x-1))dx` `(A) ln (e^(x)+sqrt(e^(2x)-1))-sec^(-1)(e^(x))`+C `(B) ln(e^(x)+sqrt(e^(2x)-1))+sec^(-1)(e^(x))+C` `(C) ln (e^(x)-sqrt(e^(2x)-1))-sec^(-1)(e^(x))`+C `(D) ln(e^(x)+sqrt(e^(2x)-1))-sin^(-1)(e^(-x))+C`

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