document.write( "Question 237518: I am trying to find the derivative of (1/x)
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document.write( "I need to see how to get passed the step of putting (x+h) in and dividing everything by h.\r
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document.write( "Any help is greatly apprieciated. \n" );
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Algebra.Com's Answer #174649 by stanbon(75887) ![]() You can put this solution on YOUR website! I am trying to find the derivative of (1/x) \n" ); document.write( "I need to see how to get passed the step of putting (x+h) in and dividing everything by h. \n" ); document.write( "----------------------- \n" ); document.write( "f(x+h) = 1/(x+h) \n" ); document.write( "f(x) = 1/x \n" ); document.write( "------ \n" ); document.write( "f(x+h)-f(x)=[1/(x+h) - 1/x] = [x-(x+h)]/[x(x+h)] \n" ); document.write( "--- \n" ); document.write( "= [-h]/[x^2+hx] \n" ); document.write( "------------------------- \n" ); document.write( "Now divide by \"h\" to get:\r \n" ); document.write( "\n" ); document.write( "= [-1]/[x^2+hx]\r \n" ); document.write( "\n" ); document.write( "====================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |