document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327328>Question 327328</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this question:<BR>\n" );
document.write( "Determine whether each statement is true or false and give a counterexample if the statement is false.<BR>\n" );
document.write( "A. The set of rational numbers is closed under subtraction.\r<BR>\n" );
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document.write( "-10/(-2) = +5 = 5\r<BR>\n" );
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document.write( "B. The set of irrational numbers is closed under division.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #234461 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=234461\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a) True, rational number minus rational number will give a rational number.<BR>\n" );
document.write( "b) False,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%288%29%2Fsqrt%282%29=sqrt%288%2F2%29=sqrt%284%29=2 ALIGN=MIDDLE  ALT=\"sqrt%288%29%2Fsqrt%282%29=sqrt%288%2F2%29=sqrt%284%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > irrational number divided by irrational number leads to rational number. </SPAN>\n" );
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