document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1193479>Question 1193479</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the sequence 2,-2,4,-6,10.... find the recursive formula\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #825575 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=825575\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The recursive formulas from the other two tutors are very interesting....<br><BR>\n" );
document.write( "But there is a much simpler one.<br><BR>\n" );
document.write( "a(n)=a(n-2)-a(n-1):<br><BR>\n" );
document.write( "4 = 2-(-2)<BR>\n" );
document.write( "-6 = -2-4<BR>\n" );
document.write( "10 = 4-(-6)<BR>\n" );
document.write( "...<BR>\n" );
document.write( "etc.<br><BR>\n" );
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