document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=121435>Question 121435</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine those real numbers a for which the opposite of a is the same as the reciprocal of a. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #89110 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=89110\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The opposite of \"a\" is \"-a\".<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "-a = 1/a <BR>\n" );
document.write( "-a^2 = 1<BR>\n" );
document.write( "a^2 = -1<BR>\n" );
document.write( "a = i or -i<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "There are no Real Numbers which satisfy the condistion.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );