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Let f:[2, oo) rarr X be defined by f(x)...

Let `f:[2, oo) rarr X` be defined by `f(x) = 4x-x^2`. Then, f is invertible if X =

A

`[2, oo)`

B

`(-oo, 2]`

C

`(-oo, 4]`

D

`[4, oo)`

Text Solution

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The correct Answer is:
C
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