Question

How do you find `f^-1(x)` given `f(x)=1/x`?

Answer 1

`f^-1 x= 1/x`

Explanation:

Let f(x) =y= `1/x`

Interchange x and y and solve for y. Accordingly it would be x=1/y, which would give y= `1/x`. So, it is `f^-1 x= 1/x`