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Mathematics
OpenStudy (anonymous):

How can I proove if the following functions are inject, surjective or bijective? a) f(x)=x b) f(x)=x^2 c) f(x)=x^3 d) f(x)=x/(x+2) How can I proove if the following functions are inject, surjective or bijective? a) f(x)=x b) f(x)=x^2 c) f(x)=x^3 d) f(x)=x/(x+2) @Mathematics

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