Find `(d^2y)/(dx^2)` , where `y=log((x^2)/(e^2))` .

Explanation

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