A function f from the set of natural numbers to integers is defined by
A. one-one but not onto
B. onto but not one-one
C. one-one and onto both
D. neither one-one nor onto
Answer:C
A function f from the set of natural numbers to integers is defined by
A. one-one but not onto B. onto but not one-one C. one-one and onto both D. neither one-one nor onto