Lecture 21 (Calculus) part 1

In Leibniz notation, the derivative dy/dx arises from taking the limit of:

1. A.the product Δy · Δx as Δx → ∞
2. B.the sum Δy + Δx as Δx → 0
3. C.the ratio Δy/Δx as Δx → 0
4. D.the difference Δy − Δx as Δx → 0