document.write( "Question 448585: I don't understand this problem.\r
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Algebra.Com's Answer #308675 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Say you have the set {1, 2, 3}. A subset of that given set will be any set that has either 1, 2, or 3 as elements and nothing else. So the set {1,2} is a subset of the set {1,2,3}\r
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\n" ); document.write( "\n" ); document.write( "List of subsets that have exactly one element: {a}, {b}, {c}\r
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\n" ); document.write( "\n" ); document.write( "List of subsets that have exactly two elements: {a,b}, {a,c}, {b,c}
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