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If y=(logx)/x ,s howt h a t(d^2y)/(dx^...

If `y=(logx)/x ,s howt h a t(d^2y)/(dx^2)=(2logx-3)/(x^3)`

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`y=frac{log x}{x}`

differentiating with respect to `{x}`

`=frac{d y}{d x}=log x cdot(-frac{1}{x^{2}})+frac{1}{x} times frac{1}{x}`

`=frac{d y}{d x}=frac{1}{x^{2}}(1-log x)`

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