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Online Quiz (Worksheet A B C D)

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Grade 8 - Mathematics
4.21 Union of Two Sets - I

Union of Sets:
The set which contains all the elements which belongs to either A or B both is called the union of of A and B and is denoted by A B.
\ A B = {x/x A or x B}.

Find A B, if A = {1,2,3} and B = {2,3,6,8}.

1. Write all the elements in A and write all the elements in B
A B = {1,2,3} {2,3,6,8}
2. Write all of them in a set.
A B = {1,2,3,2,3,6,8}
3. Remove the common elements and write the remaining elements.
\ A B = {1,2,3,6,8}.

Directions: Solve the following problems. Also write at least five examples of your own.
Q 1: Find A B, if A = {13} and B = {2,4,6,8}.
None of these

Question 2: This question is available to subscribers only!

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