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If a functions f: [2,oo) rarr B defined ...

If a functions `f: [2,oo) rarr B` defined by `f(x) = x^2 - 4x + 5` is a bijection, then B is equal to a)R b)`[1,oo)` c)`[4,oo)` d)`[5,oo)`

A

R

B

`[1,oo)`

C

`[4,oo)`

D

`[5,oo)`

Text Solution

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The correct Answer is:
B
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