6. Derivatives of Products and Quotients
www.intmath.com › differentiation › 6-derivativesDec 02, 2021 · = u dxdv + v dxdu In words, this can be remembered as: "The derivative of a product of two functions is the first times the derivative of the second, plus the second times the derivative of the first." Where does this formula come from? Like all the differentiation formulas we meet, it is based on derivative from first principles. Example 1