document.write( "Question 448109: How do I write this set?\r
\n" ); document.write( "\n" ); document.write( "Given: A= {1,2,3,4,5} B={2,4,6} C= {1,3,5}\r
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\n" ); document.write( "\n" ); document.write( "U= union
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Algebra.Com's Answer #308429 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
The U stands for Union. This is where you simply combine two sets and erase any duplicates. \r
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\n" ); document.write( "\n" ); document.write( "So in this case, B U C = {2,4,6,1,3,5}. Basically I just threw everything from B and C into one set.\r
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\n" ); document.write( "\n" ); document.write( "So A U (B U C) = {1, 2, 3, 4, 5, 6}\r
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\n" ); document.write( "\n" ); document.write( "Notes: sets B and C are subsets of A (ie everything in B is also in A. Same can be said for C). So A U B = A and A U C = A. So we can think of A U (B U C) as\r
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\n" ); document.write( "\n" ); document.write( "A U (B U C) = (A U B) U C = A U C = A\r
\n" ); document.write( "\n" ); document.write( "or\r
\n" ); document.write( "\n" ); document.write( "A U (B U C) = A U (C U B) = (A U C) U B = A U B = A\r
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\n" ); document.write( "\n" ); document.write( "Either way we get set A as an answer.
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