document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=773410>Question 773410</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the sum of the geometric sequence 1, 4, 16, ... if there are 8 terms? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471520 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=471520\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  What is the sum of the geometric sequence 1, 4, 16, ... if there are 8 terms?<BR>\n" );
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document.write( "n = 8 ; a = 1 ; r = 4/1 = 4<BR>\n" );
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document.write( "S(n) = a[(r^n-1]/[r-1]<BR>\n" );
document.write( "S(8) = 1[255/3] = 85<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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