Discrete Math Question:

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Let f and g be the function from the set of integers to itself, defined by f(x) = 2x + 1 and g(x) = 3x + 4. Then the composition of f and g is ________.
a) 6x + 9
b) 6x + 7
c) 6x + 6
d) 6x + 8

Discrete Math Interview Question
Discrete Math Interview Question

Answer:

a) 6x + 9

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The domain of the function that assign to each pair of integers the maximum of these two integers is ________.
a) N
b) Z
c) Z +
d) Z+ X Z+		__________ bytes are required to encode 2000 bits of data,
a) 1
b) 2
c) 3
d) 8