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Let f: (- oo, o] rarr [1,oo) be defined ...

Let `f: (- oo, o] rarr [1,oo)` be defined as `f(x) = (1+sqrt(-x))-(sqrt-x-x)` , then f(x) is

A

injective but not surjective

B

injective as well as surjective

C

neither injective nor surjective

D

surjective but not injective

Text Solution

Verified by Experts

The correct Answer is:
B
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