If `x=\ sqrt(2)-1` , then write the value of `1/x`

Explanation

Given,
`x=sqrt2-1`
Therefore,
`1/x=1/(sqrt2-1)`
`=(sqrt2+1)/((sqrt2)^2-(1)^2)`{using method of Rationalising}
`=(sqrt2+1)/(2-1)`
`=sqrt2+1`