1.

If `y=(lnx)/(x)`"then"`(dy)/(dx)` will be:A. `(1-lnx)/(x)`B. `(1+lnx)/(x^(2))`C. `(1-lnx)/(x^(2))`D. `(lnx-1)/(x^(2))`

Answer» Correct Answer - C
`y=(lnx)/(x)`
`(dy)/(dx)=(x(d)/(dx)(lnx)-lnx(d)/(dx)(x))/(x^(2))`
`=(x(1//x)-lnx)/(x^(2))`
`(dy)/(dx)=(1-lnx)/(x^(2))`


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