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A function f:R^+ rarr R defined by f(x)=...

A function `f:R^+ rarr R` defined by `f(x)=x^2` is

A

onto but not one-one

B

one-one and onto both

C

neither one-one nor both

D

one-one but not onto

Text Solution

Verified by Experts

The correct Answer is:
D
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