document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1067630>Question 1067630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello sirs and ma'ams. May I ask your help for the following problems:<BR>\n" );
document.write( "Write the following in summation notation:numbers 1 and 2<BR>\n" );
document.write( "1. n+(n+3)+(n+6)+...+(n+3p)<BR>\n" );
document.write( "2. 1/3 + 3/5 + 3/7<BR>\n" );
document.write( "3. Prove that for any natural number n, 1^2 + 2^2+...+n^2 = [n(n+1)(2n+1)]/6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #682783 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52790)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=682783\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "3. Prove that for any natural number n, 1^2 + 2^2+...+n^2 = [n(n+1)(2n+1)]/6<BR>\n" );
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document.write( "See the lesson \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=http://www.algebra.com/algebra/homework/Sequences-and-series/Mathematical-induction-for-sequences-other-than-arithmetic-or-geometric.lesson>Mathematical induction for sequences other than arithmetic or geometric</A>\r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );