1. 24. Differentiation 4We completed our last two Applications of Differentiation - Maxima / Minima and Connected Rates of Change. Maxima/minima is little changed from what you did last year, concept wise. Equations wise we looked at how implicit differentiation helped open up new, easier options for us to differentiate equations. Managing the question context and geometry are two challenges that remain with us, and we will aim to build up more experience over time! Rates of Change are the same. The concept is exactly the same, but the equations/setups are wildly varied. Nevertheless, our consistent approach to forming the chain rule, and setting up the differentiation from there, can help us position any problem, including parametric rates of change.