2
(Choose 1 answer)
(See picture)
A. f is both one-to-one and onto.
B. f is neither one-to-one nor onto.
C. f is onto but not one-to-one.
D. f is one-to-one but not onto.
Let f: N→ Z be the function defined as follows n 2 f(n)=n²+1 2 n is even n is odd
Choose the correct answer.
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