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Let f (x) =[0, if x is rational and x i...

Let `f (x) =[0`, if x is rational and x if x is irrational and `g (x)=[0` , if x is irrational and x if x is rational then the function `(f-g)x` is

A

one-one and onto

B

neither one-one nor onto

C

one-one but not onto

D

onto but not one-one

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The correct Answer is:
A
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