document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1149333>Question 1149333</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1^2+3^2+...+(2n-1)^2=1/3n(4n^2-1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #770676 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52908)</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=770676\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "There are several proofs by the method of Mathematical induction.\r<BR>\n" );
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document.write( "See the links\r<BR>\n" );
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document.write( "https://socratic.org/questions/show-by-induction-that-aa-n-1-1-2-3-2-5-2-2n-1-2-n-3-4n-2-1\r<BR>\n" );
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document.write( "https://math.stackexchange.com/questions/623504/prove-that-12-32-2n-12-displaystyle-frac4n3-n3\r<BR>\n" );
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document.write( "Happy learning (!)\r<BR>\n" );
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