document.write( "Question 134680This question is from textbook College Mathematics
\n" ); document.write( ": The question reads:\r
\n" ); document.write( "\n" ); document.write( "Find and simplify:\r
\n" ); document.write( "\n" ); document.write( "[f(a+h)-f(a)]/h where f(x)=1/x\r
\n" ); document.write( "\n" ); document.write( "What I think I'm to do would be to replace \"f\" with 1/x\r
\n" ); document.write( "\n" ); document.write( "Thank you for your help with this problem.
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Algebra.Com's Answer #98519 by rajagopalan(174)\"\" \"About 
You can put this solution on YOUR website!
f(x)=1/x
\n" ); document.write( "f(a+h)=1/(a+h)
\n" ); document.write( "f(a)=1/a
\n" ); document.write( "f(a+h)-f(a)=((1/(a+h))-(1/a)
\n" ); document.write( "...........=(a-(a+h))/(a*(a+h))
\n" ); document.write( "...........=-h/(a(a+h)
\n" ); document.write( "so [f(a+h)-f(a)]/h=-h/(a(a+h) divided by h
\n" ); document.write( "=-1/(a(a+h))\r
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