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Which of the following function from Z t...

Which of the following function from Z to itself are bijections?

A

`f(x)=x^(3)`

B

`f(x)=x+2`

C

`f(x)=2x+1`

D

`f(x)=x^(2)+1`

Text Solution

Verified by Experts

The correct Answer is:
B
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