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Pearson Algebra 1 Common Core, 2011 View details

8. Unions and Intersections of Sets

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Exercise 3 Page 218

The symbol ⋂ indicates the intersection of two sets.

X⋂ Z=∅

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Since we have the symbol ⋂, we are looking for the intersection of the given sets. X&={2, 4, 6, 8, 10} Z&={1, 3, 5, 7, 9} The intersection of two sets is the set that contains elements that are common in both sets. An element is in the intersection of X and Z if it belongs to X and to Z at the same time. Notice that sets X and Z share no common elements. Therefore, the intersection of those sets is an empty set. X⋂ Z=∅