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If f : RrarrR such that f(x) = x - [x], ...

If f : R`rarr`R such that f(x) = x - [x], where [p] denotes the greatest integar less than or equal to p, then find `f^-1 (x)`, if exists.

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Here, f(x) = x - [x] = 0 for all integral values of x .
Thus the function f(x0 = x - [x] is many - one
Hence , the `f^-1(x)` is not defined.
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