If N is the set of all natural numbers, E is the set of all even natural numbers and f:N→E defined by f(x)=2x‌∀x&N then f is

Question

If N is the set of all natural numbers, E is the set of all even natural numbers and f: N → E defined by f(x)=2 x ∀ x \& N then f is

Examsnet · Accepted Answer

Correct Answer is :  One-one, onto

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