document.write( "Question 1041377: Show that, if x is real, the values of the expression \"%28x%5E2-3x%2B1%29%2F%282x%5E2-3x%2B2%29\" can only lie between -1 and 5/7. \n" ); document.write( "
Algebra.Com's Answer #656369 by Edwin McCravy(20054)\"\" \"About 
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Let y = the expression\r\n" );
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document.write( "\"y=%28x%5E2-3x%2B1%29%2F%282x%5E2-3x%2B2%29\"\r\n" );
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document.write( "Show that the denominator is never 0.\r\n" );
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document.write( "Show that it has derivative\r\n" );
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document.write( "\"%28dy%29%2F%28dx%29=%283%28x%5E2-1%29%29%2F%282x%5E2-3x%2B2%29%5E2\"\r\n" );
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document.write( "Set that = 0 and show that it has relative \r\n" );
document.write( "and absolute max at (-1,5/7) and an absolute\r\n" );
document.write( "minimum at (1,-1).\r\n" );
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document.write( "Edwin

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