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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

High School Mathematics
7.1 Union of Sets

If A and B are two sets, A B contains elements which are either in A or in B or in both.

Example:
Find the union of A and B, if, A = {1, 3, 5, 7} and B = {2, 4, 6, 8}.
Solution:
Given that, A = {1, 3, 5, 7} and B = {2, 4, 6, 8}.
A B = {1, 3, 5, 7} {2, 4, 6, 8}.
A B = {1, 2, 3, 4, 5, 6, 7, 8}.


Directions: Choose the correct answer. Also write at least 10 examples of your own.
Q 1: If A = {2, 3, 5} and B = {1, 2, 3, 4}, then check the statement A B = B A.
Not correct
Correct

Q 2: If A = {2, 4, 6, 8} and B = {1, 2, 3, 4}, then check the statement A B = B A.
Correct
Not correct

Q 3: If A = {5, 6, 7, 8} and B = {2, 3, 5, 7},then find A B.
{1, 2, 3, 4, 5}
{2, 3, 5, 6,7}
{2, 3, 5, 6, 7, 8}

Q 4: If A = {1, 2, 3, 4, 5}, B = {7, 9, 11, 13} and C = {2, 4, 6, 8}, then check the statement (A B) C = A (B C).
Correct
Not correct

Q 5: If A = {1, 2, 3, 4, 5}, B = {3, 6, 9} and C = {2, 4, 6, 8}, then find A B C.
{1, 2, 3, 4, 5, 6, 7, 8, 9}
{2, 3, 4, 5, 6, 7, 8, 9}
{1, 2, 3, 4, 5, 6, 8, 9}

Q 6: If A = {2, 4, 6, 8}, B = {3, 6, 9, 12} and C = {4, 8, 12, 16}, then correct (A B) C = A (B C).
Correct
Not correct

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!


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