document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65391>Question 65391</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the common ratio of the geometric sequence<BR>\n" );
document.write( " 81, -27, 9, -3, ... </SPAN>\n" );
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document.write( "81, -27, 9, -3, ...<BR>\n" );
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document.write( "r=-27/81=-1/3<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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