### Inverse Functions

Worked problem in calculus. Determine if the following functions have inverses. If so, find the inverse function, check, and sketch. (a) f(x) = (x-3)^3 + 4, (b) f(x) = |x-2| + |x-1|, and (c) f(x) = 2sqrt(x - 3) + 1.

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