document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=449748>Question 449748</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given U = {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25}, A = {16, 18, 20, 22}, and B = {17, 19, 20, 23, 24}.\r<BR>\n" );
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document.write( "Find A&#8242;U B&#8242;. Do not skip to the answer. Show your work, finding A’, then B’ then find their union </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #309349 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=309349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A = {16, 18, 20, 22}\r<BR>\n" );
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document.write( "A' = {15, 17, 19, 21, 23, 24, 25} .... this is the set of U but excluding everything in A (ie it's everything but set A). So start with U, then delete every element found in A.\r<BR>\n" );
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document.write( "B = {17, 19, 20, 23, 24}\r<BR>\n" );
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document.write( "B' = {15, 16, 18, 21, 22, 25}\r<BR>\n" );
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document.write( "Now union A' and B' to get\r<BR>\n" );
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document.write( "A' U B' = {15, 16, 17, 18, 19, 21, 22, 23, 24, 25}\r<BR>\n" );
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document.write( "This is just the combination of the two sets (ie dump all the elements from both sets A' and B' into A' U B' and remove any duplicates). </SPAN>\n" );
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