1.

d/(dx) [(e^(sinsqrt(x)) + e^(-sin sqrt(x)))/(e^(sin sqrt(x)) - e^(-sinsqrt(x)))] =

Answer»

`(-2/(SQRT(x)) cos sqrt(x))/((e^(SIN sqrt(x)) - e^(-sin sqrt(x)))^2)`
`(-2/(sqrt(x)) cos sqrt(x))/(e^(sin sqrt(x)))`
`(-2 cossqrt(x))/(e^(sin sqrt(x)))`
`(2 cossqrt(x))/(e^(sin sqrt(x)))`

Answer :A


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