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Let f:R->R be a function is defined by f...

Let `f:R->R` be a function is defined by `f(x)=x^2-(x^2)/(1+x^2)`, then

A

f is one - one but not onto mapping

B

f is onto but not one - one mapping

C

f is both one - one and onto

D

f is neither one - one nor onto

Text Solution

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The correct Answer is:
B
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