document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=438222>Question 438222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi there.\r<BR>\n" );
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document.write( "i need help with this problem: prove the sum of the first n term of a geometric sequence ... </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303106 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=303106\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S+=+a+%2B+ar+%2B+ar%5E2+ ALIGN=MIDDLE  ALT=\"S+=+a+%2B+ar+%2B+ar%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >+...+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ar%5E%28n-2%29+%2B+ar%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"ar%5E%28n-2%29+%2B+ar%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=a(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1+%2B+r+%2B+r%5E2+ ALIGN=MIDDLE  ALT=\"1+%2B+r+%2B+r%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >+...+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E%28n-2%29+%2B+r%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"r%5E%28n-2%29+%2B+r%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >)\r<BR>\n" );
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document.write( "=a(<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1+%2B+r+%2B+r%5E2+ ALIGN=MIDDLE  ALT=\"1+%2B+r+%2B+r%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >+...+<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5E%28n-2%29+%2B+r%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"r%5E%28n-2%29+%2B+r%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >)*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%281-r%29%2F%281-r%29%29 ALIGN=MIDDLE  ALT=\"%28%281-r%29%2F%281-r%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=a*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281-r%5En%29%2F%281-r%29 ALIGN=MIDDLE  ALT=\"%281-r%5En%29%2F%281-r%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "This formula is valid only when |r| < 1. </SPAN>\n" );
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