Pure Mathematics 3 3.4 Differentiation 3.4.4 Implicit differentiation, tangents and normals Key ConceptsLearn FirstLoading… Key FormulasKnow TheseLoading… Common MistakesAvoid TheseLoading… StrategyApply ThisLoading…9709-P3-SUB-3.4.4-115 QuestionsLoading… 9709-P3-SUB-3.4.4-215 QuestionsLoading…