3. 4: The Quotient Rule - Mathematics LibreTexts The quotient rule use used to compute the derivative of f (x) g (x) if we already know f′ (x) and g′ (x) It is often possible to calculate derivatives in more than one way, as we have …
Quotient Rule | Brilliant Math Science Wiki Now it's time to look at the proof of the quotient rule: Let h (x) = f (x) g (x) h(x) = g(x)f (x) and assume that g (x) ≠ 0 g(x) = 0 and f ′ (x) f ′(x) and g ′ (x) g′(x) exist