Discrete Math Question:

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Power set of empty set has exactly _____ subset.
a) One
b) Two
c) Zero
d) Three

Discrete Math Interview Question
Discrete Math Interview Question

Answer:

a) One

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What is the Cartesian product of A = {1, 2} and B = {a, b}?
a) {(1, a), (1, b), (2, a), (b, b)}
b) {(1, 1), (2, 2), (a, a), (b, b)}
c) {(1, a), (2, a), (1, b), (2, b)}
d) {(1, 1), (a, a), (2, a), (1, b)}		The Cartesian Product B x A is equal to the Cartesian product A x B. Is it True or False?
a) True
b) False