document.write( "Question 1195640: Let
\n" ); document.write( "S={1,2,3,...,18,19,20} be the universal set.\r
\n" ); document.write( "\n" ); document.write( "Let sets A and B be subsets of S, where:\r
\n" ); document.write( "\n" ); document.write( "Set A={1,2,4,5,7,10,13,15,16,17}
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\n" ); document.write( "Set B={1,3,6,9,10,12,16,17,18}
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\n" ); document.write( "\n" ); document.write( "Determine the following:\r
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\n" ); document.write( "\n" ); document.write( "n(B)=
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\n" ); document.write( "\n" ); document.write( "n(A∩B)=
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\n" ); document.write( "\n" ); document.write( "n(A∪B)=
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Algebra.Com's Answer #828233 by ikleyn(52778)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "The level of complexity of this and similar problems is the same as \r
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