document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1123877>Question 1123877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the given geometric sequence t&#8339; find r if S&#8322;=10 and S&#8324;=50<BR>\n" );
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document.write( "S(4) = S(2)*r^2<br><BR>\n" );
document.write( "So<br><BR>\n" );
document.write( "50 = 10r^2<BR>\n" );
document.write( "r^2 = 5<br><BR>\n" );
document.write( "r can be either sqrt(5) or -sqrt(5) </SPAN>\n" );
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