document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983594>Question 983594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let U={1,2,3,4,5,6,7,8,9,10}<BR>\n" );
document.write( "Let A={1,2,4,6,9,3}<BR>\n" );
document.write( "Let B={1,3,4,5,8}<BR>\n" );
document.write( "Let C={4,5,9,3}\r<BR>\n" );
document.write( "\n" );
document.write( "How to determine C-A' </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604442 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20855)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=604442\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
document.write( "\n" );
document.write( "A' --> complement of subset A --> all elements in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=U ALIGN=MIDDLE  ALT=\"U\"   DISABLED_style= \"max-width:90%; height:auto;\" > but not in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A ALIGN=MIDDLE  ALT=\"A\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "if  <BR>\n" );
document.write( "U={1,2,3,4,5,6,7,8,9,10} and  <BR>\n" );
document.write( "A={1,2,4,6,9,3}\r<BR>\n" );
document.write( "\n" );
document.write( "then<BR>\n" );
document.write( "A' = {5,7,8,10}\r<BR>\n" );
document.write( "\n" );
document.write( "if C={4,5,9,3} and A' = {5,7,8,10}, then C-A' is:\r<BR>\n" );
document.write( "\n" );
document.write( "by def: The difference or relative compliment of two sets C and A', denoted by<BR>\n" );
document.write( "C-A'  is the set of all elements in C that are not in A'.\r<BR>\n" );
document.write( "\n" );
document.write( " as you can see, none of elements in C are in A',so <BR>\n" );
document.write( "C-A'={4,5,9,3}=C\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );