document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=967181>Question 967181</A>: <I><SPAN STYLE=\"word-break: break-all;\"> This is a problem from a past exam, used for studying, but I'm not able to answer it - which doesn't bode well for the upcoming exam :-(<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Give a closed form expression of the summation <BR>\n" );
document.write( "SIGMA  n[on top]<BR>\n" );
document.write( "   &nbsp;&nbsp;&nbsp;&nbsp;    i=1[on bottom] i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #591138 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=591138\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is something to memorize\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \sum_{i=1}^{n}i = \frac{n*(n+1)}{2}\"> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );