document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201861>Question 201861</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone please tell me if this statement is true or false\r<BR>\n" );
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document.write( "{3,6,9,12} u {3,9} = {3,6,9,12} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152101 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=152101\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if the \"u\" is the union operator, then yes, the statement \r<BR>\n" );
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document.write( "{3,6,9,12} u {3,9} = {3,6,9,12}\r<BR>\n" );
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document.write( "is true. Why? Recall that the union of two sets is the combination of the two sets (with duplicates removed). Also, it helps to note that if set B is a subset of set A, then \r<BR>\n" );
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document.write( "A U B = A </SPAN>\n" );
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