document.write( "Question 915951: the formula for 1/2, 1/4, 1/6, 1/8
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Algebra.Com's Answer #556125 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Some textbooks use  and others use  for the nth term.\r\n" );
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document.write( "So it's:\r\n" );
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document.write( " or \r\n" );
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document.write( "depending on which your textbook and instructor uses.\r\n" );
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document.write( "Edwin

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