document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1025112>Question 1025112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me this problem is driving me crazy.\r<BR>\n" );
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document.write( "Write the sum using sigma notation: \r<BR>\n" );
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document.write( "1/1&#8901;2+1/2&#8901;3+1/3&#8901;4+&#8943;+1/219&#8901;220=<BR>\n" );
document.write( "A<BR>\n" );
document.write( "&#8721; B<BR>\n" );
document.write( "n=1<BR>\n" );
document.write( ", where \r<BR>\n" );
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document.write( "A=<BR>\n" );
document.write( "       \r<BR>\n" );
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document.write( "B=<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #640448 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=640448\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Note that each term is of the form 1/(n*(n+1)) where n ranges from 1 to 219 (*not* 220).\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\large \sum_{n=1}^{219} \frac{1}{n(n+1)}\">\r<BR>\n" );
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document.write( "In fact, the sum is equal to 1 - (1/220) = 219/220. But that is a completely different problem. </SPAN>\n" );
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