document.write( "Question 468914: given U={15,16,17,18,19,20,21,22,23,24,25}, A={16,18,20,22}B={17,19,20,23,24}
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Algebra.Com's Answer #321737 by Edwin McCravy(20055) $\"\"$ $\"About$

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given U={15,16,17,18,19,20,21,22,23,24,25}, A={16,18,20,22}B={17,19,20,23,24}
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document.write( "A' is the set of all elements of U that are not elements of A,\r\n" );
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document.write( "so A' = {15,17,19,21,23,24,25}.\r\n" );
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document.write( "B' is the set of all elements of U that are not elements of B,\r\n" );
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document.write( "so B' = {15,16,18,21,22,25}.\r\n" );
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document.write( "Therefore \r\n" );
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document.write( "A' ᑎ B' = {15,17,19,21,23,24,25} ᑎ {15,16,18,21,22,25}\r\n" );
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document.write( "ᑎ means to get the set of only those elements that are in \r\n" );
document.write( "common to the sets on both sides of the symbol ᑎ.  There are\r\n" );
document.write( "only three elements in common to both sets. \r\n" );
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document.write( "A' ᑎ B' = {15,21,25}\r\n" );
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document.write( "Edwin

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