Question 1195638
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The union of two sets contains elements that are in one set, the other set, or both.  For example:  The Union of A and B contains the element 2 because 2 is an element of A and it contains the element 6 because 6 is an element of both A and B.  The element 1 of the universal set is not an element of A union B because neither A nor B contain the element 1.  Since all of the elements of B are also in A, the union set is identical to A


The intersection of two sets is the set of elements that are in both of the sets.  For example, the element 2 is not in the intersection because 2 is only in set A, and the element 1 is not in the intersection because 1 is not in either A or B.  Since all of the elements in B are also in A, the intersection set is identical to set B.


																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
*[illustration darwinfish.jpg]

From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> 
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