Using the definintion, find the derivative of f(x) = 1/x.

Limits, differentiation, related rates, integration, trig integrals, etc.
nona.m.nona
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Using the definintion, find the derivative of f(x) = 1/x.

Postby nona.m.nona » Sun Apr 05, 2009 8:50 pm

Using the definintion, find the derivative of f(x) = 1/x.

The definition is

First I did the numerator:







Then I put the denominator in:





Then the limit gives me

Did I do this correctly? Thank you.

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Martingale
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Re: Using the definintion, find the derivative of f(x) = 1/x.

Postby Martingale » Sun Apr 05, 2009 9:00 pm

yes


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