Discrete Math Question:

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A function is said to be ______________, if and only if f(a) = f(b) implies that a = b for all a and b in the domain of f.
a) One-to-many
b) One-to-one
c) Many-to-many
d) Many-to-one

Discrete Math Interview Question
Discrete Math Interview Question

Answer:

b) One-to-one

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The members of the set S = {x | x is the square of an integer and x < 100} is _________________.
a) {0, 2, 4, 5, 9, 58, 49, 56, 99, 12}
b) {0, 1, 4, 9, 16, 25, 36, 49, 64, 81}
c) {1, 4, 9, 16, 25, 36, 64, 81, 85, 99}
d) {0, 1, 4, 9, 16, 25, 36, 49, 64, 121}		The set of positive integers is _________ .
a) Infinite
b) Finite
c) Subset
d) Empty