document.write( "Question 237518: 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.\r
\n" ); document.write( "\n" ); document.write( "Any help is greatly apprieciated.
\n" ); document.write( "

Algebra.Com's Answer #174649 by stanbon(75887)\"\" \"About 
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( "
\n" );