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If f(x)=[4x]+{3x} where [.] denotes GIF ...

If `f(x)=[4x]+{3x}` where [.] denotes GIF and {.} denotes FPF then for `x in [0,5]` number of points of discontinuity of `f(x)` are 25 `f^(prime)(0)=0` `f^(prime)(x)=3` wherever defined `f(x)<20`

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