document.write( "Question 154537: If log base 8 of 3=r and log base 8 of 5=s, express log base 8 of 3/64 in terms of r and s. \n" ); document.write( "
Algebra.Com's Answer #113789 by AnlytcPhil(1810)\"\" \"About 
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If log base 8 of 3=r and log base 8 of 5=s, express log base 8 of 3/64 in terms of r and s.\r
\n" ); document.write( "\n" ); document.write( "If \"log%288%2C3%29=r\" and \"log%288%2C5%29=s\", express \"log%288%2C%283%2F64%29%29\" in terms of r and s.
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document.write( "\"log%288%2C%283%2F64%29%29\"\r\n" );
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document.write( "Use this logarithm rule:  \"log%28B%2C%28A%2FC%29%29=log%28B%2CA%29-log%28B%2CC%29\"\r\n" );
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document.write( "\"log%288%2C%283%2F64%29%29=log%288%2C3%29-log%288%2C64%29\"\r\n" );
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document.write( "Write \"64\" as \"8%5E2\"\r\n" );
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document.write( "\"log%288%2C%283%2F64%29%29=log%288%2C3%29-log%288%2C8%5E2%29\" \r\n" );
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document.write( "Use this logarithm rule on the last term: \"log%28B%2CA%5EC%29=C%2Alog%28B%2CA%29\"\r\n" );
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document.write( "\"log%288%2C%283%2F64%29%29=log%288%2C3%29-2%2Alog%288%2C8%29\"\r\n" );
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document.write( "Then use this logarithm rule on the last term: \"log%28B%2CB%29=1\"\r\n" );
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document.write( "\"log%288%2C%283%2F64%29%29=log%288%2C3%29-2%2A1\"\r\n" );
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document.write( "\"log%288%2C%283%2F64%29%29=r-2\"\r\n" );
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document.write( "s was not needed.\r\n" );
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document.write( "Edwin
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