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WORKBOOK

OPERATIONS ON SETS

UNION OF SETS:

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Symbolically: A ∪ B = { x⃓ x ∈ A or x ∈ B}

By Venn Diagram:

F  E  E  F  .....

Example 1: A   ,2,1  6 , 5 , 4 , 3 and B  x : x primenumber and x  10  are given. Represent

A  Bby Venn diagram and by listed method.

Example 2: A ∪ B = {a,b,c,d,2,4, 6} and = {,4, 6} are given

a) What is the number of elements of A at most?

b) What is the number of elements of A at least?

c) How many different set A can be written?

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