Stage 36 · Limits, Derivatives & Their Applications
36.4.2 The Sum and Difference Rule
36.4 The Differentiation Toolbox: Formulas and Rules
Point 2 of 6
36.4.2 The Sum and Difference Rule
Core ideaStack a few curves together and their steepnesses just add up too: (u±v)′=u′±v′.
Module goal. Turn point-by-point limit-taking into looking things up and applying rules, so differentiation is fast and accurate across common functions and nested structures.