CoreKeyIntegrals
Definite Integral
Overview
The definite integral gives the exact accumulated area (signed) between a curve and the x-axis over [a, b].
Key Concepts
1
∫ₐᵇ f(x) dx = lim_{n→∞} Σ f(xᵢ)Δx
2
Area above x-axis is positive, below is negative
3
Units: (units of f) × (units of x)
See it in action
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