document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=137345>Question 137345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the sum of the first fifteen terms of the geometric series:<BR>\n" );
document.write( "2-3+4.5-6.75+10.125 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100502 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=100502\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the sum of the first fifteen terms of the geometric series:<BR>\n" );
document.write( "2-3+4.5-6.75+10.125<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "r = -3/2<BR>\n" );
document.write( "S(15) = 2 * [(-3/2)^15 -1] / [(-3/2)-1] = 351.1151123...<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );