document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=634268>Question 634268</A>: <I><SPAN STYLE=\"word-break: break-all;\"> write sigma notation for the sequence<BR>\n" );
document.write( "4-9+16-25+...+(-1)^n(n)^2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399469 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=399469\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sum%28+%28-1%29%5Ei%2A%28i%5E2%29%2C+i+=+2%2C+n+%29 ALIGN=MIDDLE  ALT=\"sum%28+%28-1%29%5Ei%2A%28i%5E2%29%2C+i+=+2%2C+n+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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