If and , then…

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

If

f:[0,\infty)\to[0,\infty)

and

f(x)=\frac{x}{1+x}

, then

f

is (1) one-one and onto (2) one-one but not onto (3) onto but not one-one (4) neither one-one nor onto

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