- Break that bulk quantity into manageable pieces.
- Estimate the size of each piece. This will typically take the form f(x)Δx for some function of x.
- Add up the pieces. The whole is the sum of the parts!
- Take a limit as you slice things finer and finer: Total=lim
- Recognize that this is an integral: \text{Total} = \int_a^b f(x)\, dx.
- Evaluate the integral using the Fundamental Theorem of Calculus.
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