document.write( "Question 480600: I am confused on how to do this\r
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document.write( "let
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document.write( "U= {1,2,3,4,5,6,7,8}
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document.write( "A= {1,2,4,5,8}
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document.write( "B= {2,3,4,6}\r
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document.write( "determine A'n B \n" );
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Algebra.Com's Answer #329150 by Theo(13342) You can put this solution on YOUR website! i believe you are looking for A intersect B. \n" ); document.write( "this means the elements that are common to both set A and set B. \n" ); document.write( "since A = {1,2,4,5,8} and B = {2,3,4,6}, the elements that are in both A and B are {2,4} \n" ); document.write( "i just notice that you are talking about A' rather than A. \n" ); document.write( "A' is the elements that are not in A. \n" ); document.write( "that's a different story. \n" ); document.write( "we'll start again. \n" ); document.write( "your givens are: \n" ); document.write( "U= {1,2,3,4,5,6,7,8} \n" ); document.write( "A= {1,2,4,5,8} \n" ); document.write( "B= {2,3,4,6} \n" ); document.write( "all 3 of these sets are involved. \n" ); document.write( "the elements that are not in A would be the elements that are in U or in B, but not in A. \n" ); document.write( "since the elements that are in A are {1,2,4,5,8}, then the elements that are not in A would be {3,6,7} \n" ); document.write( "this makes a' = {3,6,7} \n" ); document.write( "now you want the intersection of the elements that are not in A that are also in B. \n" ); document.write( "look for any of {3,6,7} in B. \n" ); document.write( "you see that A'^B = {3,6} \n" ); document.write( "those are the elements that are not in A and that are also in B.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |