Answer: Differentiation.
- A Addition
- B Differentiation
- C Multiplication
- D Subtraction
Correct answer: B. Differentiation
Explanation: Integration is the inverse operation of differentiation. If d/dx(F(x)) = f(x), then integral of f(x) = F(x) + C.
The exact area under the curve from a to b (shaded) is approximated by a few rectangles, the Riemann sum idea behind the definite integral.