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What is the difference between the Union( U ), Complement (underlined U) and...

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imwithstupid1234 | Student, Grade 9 | eNoter

Posted May 4, 2012 at 1:03 AM via web

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What is the difference between the Union( U ), Complement (underlined U) and Intersection( n ) sets?

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted May 4, 2012 at 3:25 AM (Answer #1)

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The union of two sets A and B is a set C consisting of all the elements that lie either in set A or in set B. For any two sets A and B `AUB = BUA`

The intersection of sets A and B is a set that only has elements present both in set A as well as set B. For any two sets A and B `AnnB = BnnA`

For two sets A and B the elements that lie in A but not in B are represented by the relative complement. This is denoted as A - B or A/B. In the case of the complement function `A - B != B - A`

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