Having previously determined the derivative of ln(x), we now have that at our disposal to show one perspective of the product and quotient rules of differential calculus. A quick excursion to “implicit differentiation land” and a review of the chain rule will set things up nicely to meet our objectives here.

**Product and Quotient Rules**

**Modified Product Rule**

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[…] If you would like to waste a minute or two, feel free to click on this link to change “h”. For another perspective on the product and quotient rules, click here. […]