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Let f:RrarrR be defined by f(x)=x^(2) ...

Let `f:RrarrR` be defined by
`f(x)=x^(2) AA x in R`.

A

`f` is one-one onto

B

`f` is many-one onto

C

`f` is one-one but not onto

D

`f` is neither one-one nor onto

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