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5 votes
2. Identify if the following are one-to-one functions or not.

(a) People to their birthdays
(b) People to their Social Security System number
(c) People to their place of residence
[6]

User Thanh DK
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1 Answer

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a. yes cus one person only have one bday
b. yes cus one person have only one unique SSS
c. no cus one person can have many residence
User Lhahn
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