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document.write( "Let's take the log base 3 of each of those \r\n" );
document.write( "two expressions which are subtracted:\r\n" );
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document.write( "Take the log base 3 of \r\n" );
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document.write( "Take the log base 3 of \r\n" );
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document.write( "Since the base 3 logs of and \r\n" );
document.write( "are equal, they are also equal and so their difference is 0.\r\n" );
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document.write( "Answer: 0 \r\n" );
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document.write( "Edwin