# Determine Whether Following Functions Bijection Explain F N N Defined B F R R Defined C F Q35374832

Determine whether each of the following functions is a bijectionand explain why.

(a) f : N → N, defined as $f(x)=\left \lfloor x/2 \right \rfloor.$

(b) f : R → R, defined as $f(x) = x^2+1.$

(c) f : R → R, defined as $f(x) = (5x-2)/3.$

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