Question: 4. Let f (-00,-3) U (-3, ) R be the function defined f(x) = = +3 for all a R. Prove or disprove: f(x)

4. Let f (-00,-3) U (-3, ) R be the function defined

 

4. Let f (-00,-3) U (-3, ) R be the function defined f(x) = = +3 for all a R. Prove or disprove: f(x) is a one-to-one function.

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