Question

How do you write the equation for the inverse of the function `y=cos^-1(x-pi)`?

Answer 1

`y=cosx+pi`

Explanation:

As `y=cos^(-1)(x-pi)`

`x-pi=cosy`

or `x=cosy+pi`

Hence, inverse function of `y=cos^(-1)(x-pi)` is

`y=cosx+pi`