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If f(x)=[2x+1]+[2-2x]+{x}+{-x} where [.]...

If `f(x)=[2x+1]+[2-2x]+{x}+{-x}` where [.] represents greatest integer function and {.} represents fractional function then (1) f(x) is a periodic functional with fundamental period =1 (2) f(x) has no fundamental period (3) Range of `f(x)` is {3,4} (4) Range of f(x) is {3}

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