Can someone explain to me where the (-1/x^2) comes from in step 2 and why? It is in the attached image. Thanks for any input.
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Originally Posted by jlmills5 Can someone explain to me where the (-1/x^2) comes from in step 2 and why? It is in the attached image. Using the chain rule the factor $\displaystyle \frac {-1}{x^2}$ is the derivative of $\displaystyle \frac {1}{x}$.
of course. thank you.
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