document.write( "Question 1187768: Use logarithmic differentiation to find the derivative of the function.
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Algebra.Com's Answer #819175 by AnlytcPhil(1806)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "I think it was meant to be this:
Use logarithmic differentiation to find the derivative of the function.
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document.write( "\"matrix%282%2C3%2C%22%22%2C%22%22%2C%22%22%2Cy%2C%22%22=%22%22%2Cx%5E%28-8%2Fx%29%29\"\r\n" );
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document.write( "The hard part is going to be the algebra of simplifying the derivative:\r\n" );
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document.write( "Taking natural logs of both sides:\r\n" );
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document.write( "Using a rule of logarithms:\r\n" );
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document.write( "Taking derivatives of both sides\r\n" );
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document.write( "\"%22y%27%22%2Fy\"\"%22%22=%22%22\"\"-8x%5E%28-1%29%2A%281%2Fx%29+%2B+ln%28x%29%2A8x%5E%28-2%29\"\r\n" );
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document.write( "\"%22y%27%22%2Fy\"\"%22%22=%22%22\"\"-8x%5E%28-1%29%2A%28x%5E%28-1%29%29+%2B+ln%28x%29%2A8x%5E%28-2%29\"\r\n" );
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document.write( "\"%22y%27%22%2Fy\"\"%22%22=%22%22\"\"-8x%5E%28-2%29+%2B+ln%28x%29%2A8x%5E%28-2%29\"\r\n" );
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document.write( "\"%22y%27%22%2Fy\"\"%22%22=%22%22\"\"+ln%28x%29%2A8x%5E%28-2%29-8x%5E%28-2%29\"\r\n" );
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document.write( "\"%22y%27%22%2Fy\"\"%22%22=%22%22\"\"8x%5E%28-2%29%28ln%28x%29-1%5E%22%22%29\"\r\n" );
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document.write( "Multiply both sides by y\r\n" );
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document.write( "\"%22y%27%22\"\"%22%22=%22%22\"\"8yx%5E%28-2%29%28ln%28x%29-1%5E%22%22%29\"\r\n" );
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document.write( "Substitute \r\n" );
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document.write( "Whew! (worn out!)  J
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document.write( "Edwin

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