The Product Rule is a formula that we can use to differentiate the product of 2 (or more) functions. The Quotient Rule is for the quotient of two functions (one function divided by another). The rules are quite easy to apply. The challenge...To access the contents of this site, you need to take out a log in or FREE subscription. × Give us feedback Which of the following best describes your feedback? Recommend Report a problem Suggest an improvement Other Name Email address Comments