If the function `f: RvecR` be given by `f(x)=x^2+2a n dg: RvecR` be given by `g(x)=x/(x-1)` . Find `foga n dgofdot`

Explanation

`f: R -> R`
`
f(x)=x^{2}+2`
`
g: R -> R`
`
g(x)=frac{x}{x-1}`
`
fog (x)=f(g(x)) `
`
=f(frac{x}{x-1})`
`
=(frac{x}{x-1})^{2}+2`
`
=frac{x^{2}}{x^{2}-2 x+1}+2`
`
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