document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1046927>Question 1046927</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can anyone help with this?\r<BR>\n" );
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document.write( "Prove using mathematical induction that, for all n &#8712; N,<BR>\n" );
document.write( "1 &#8722; 2 + 3 &#8722; 4 + · · · + (&#8722;1)n+1n =<BR>\n" );
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document.write( "(n + 1)/2, when n is odd,<BR>\n" );
document.write( "&#8722;n/2, when n is even.\r<BR>\n" );
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document.write( "Thanks very much  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #662397 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</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=662397\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "If you don't know what the method of math induction is or are unsure in it, read the lessons\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-and-arithmetic-progressions.lesson>Mathematical induction and arithmetic progressions</A>\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-and-geometric-progressions.lesson>Mathematical induction and geometric progressions</A>\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( "When you will learn the method, you will be able to prove it on your own.\r<BR>\n" );
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document.write( "Also, write your sequence correctly.\r<BR>\n" );
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