document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1047211>Question 1047211</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let S be the universal set, where: S={1,2,3,...,18,19,20}\r<BR>\n" );
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document.write( "Let sets A and B be subsets of S, where:\r<BR>\n" );
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document.write( "Set A={2,3,7,12,15,16,18}<BR>\n" );
document.write( "Set B={1,2,3,5,7,9,10,11,17}\r<BR>\n" );
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document.write( "Find the following:\r<BR>\n" );
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document.write( "The number of elements in the set (A&#8746;B): n(A&#8746;B) =\r<BR>\n" );
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document.write( "The number of elements in the set (A&#8745;B): n(A&#8745;B) is  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #662723 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=662723\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> AUB is the set of elements of S that are part of A or B, or both.<BR>\n" );
document.write( "A&#8746;B = {1,2,3,5,7,9,10,11,12,15,16,17,18}<BR>\n" );
document.write( "I could count them, but there are too many, and I have not had my first cup of coffee yet.<BR>\n" );
document.write( "A&#8746;B is all of S except 4, 6, 8, 13, 14, 19, and 20.<BR>\n" );
document.write( "S had 20 elements, and 7 were left out, so<BR>\n" );
document.write( "n(A&#8746;B) = 20-7 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2813%29 ALIGN=MIDDLE  ALT=\"highlight%2813%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > .<BR>\n" );
document.write( "A&#8745;B is the set of elements of S that are common to A and B.<BR>\n" );
document.write( "A&#8745;B = {2,3,7} , so  n(A&#8745;B) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%29 ALIGN=MIDDLE  ALT=\"highlight%283%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > . </SPAN>\n" );
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