Question 1

What is the result of the union of the sets A = {1, 2, 3} and B = {3, 4, 5}?

Accepted Answer

{1, 2, 3, 4, 5}

Answer

{3, 4, 5}

Answer

{1, 2}

Answer

{1, 2, 3}

Question 2

If set X = {a, b, c, d} and set Y = {c, d, e, f}, what is the intersection of sets X and Y?

Accepted Answer

{c, d}

Answer

{a, b}

Answer

{a, b, c, d, e, f}

Answer

{a, b, e, f}

Question 3

Given sets A = {2, 4, 6} and B = {1, 2, 3, 4}, what is the difference A - B?

Accepted Answer

{6}

Answer

{2, 4}

Answer

{2, 4, 6}

Answer

{1, 3, 4}

Question 4

What is the Cartesian product of the sets P = {1, 2} and Q = {x, y}?

Accepted Answer

{(1, x), (1, y), (2, x), (2, y)}

Answer

{(1, y), (2, y)}

Answer

{(1, x), (2, y)}

Answer

{1, 2, x, y}

Question 5

If set M = {x | x is an integer, 1 ≤ x ≤ 5} and set N = {2, 4, 6}, what is the symmetric difference M Δ N?

Accepted Answer

{1, 3, 5, 6}

Answer

{1, 5}

Answer

{1, 3, 5}

Answer

{2, 4}

Question 6

What is the result of the power set of the set A = {1, 2}?

Accepted Answer

{∅, {1}, {2}, {1, 2}}

Answer

{1, 2, 3}

Answer

{1, 2}

Answer

Question 7

If set R = {3, 6, 9} and set S = {1, 2, 3, 4, 5}, what is the union of R and S?

Accepted Answer

{1, 2, 3, 4, 5, 6, 9}

Answer

{1, 2, 3}

Answer

{3, 6, 9}

Answer

{1, 2, 4, 5}

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