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## Homework Statement

Find the inverse of

.........{x......x =/= a

_{1},...,a

_{n}

f(x) = {a

_{i+1}......x = a

_{i}, i = 1,...,n-1

.........{a

_{1}......x = a

_{n}

## Homework Equations

## The Attempt at a Solution

I interchanged the variables x and y, but I am very confused as to how to solve for the rest. I don't understand how to find inverses if we aren't given an explicit formula. Can someone help please?