Calculus I

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Integrable function

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Calculus I

Definition

An integrable function is a function for which the definite integral over a specified interval exists and is finite. This concept ensures that the area under the curve of the function can be measured.

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5 Must Know Facts For Your Next Test

  1. A function must be bounded and continuous on a closed interval $[a, b]$ to be Riemann integrable.
  2. If a function has a finite number of discontinuities on $[a, b]$, it may still be integrable.
  3. The Fundamental Theorem of Calculus links the concept of an integrable function to antiderivatives.
  4. Piecewise continuous functions are often integrable over their intervals of continuity.
  5. Improper integrals extend the idea of integration to unbounded intervals or unbounded functions.

Review Questions

  • What conditions must a function satisfy to be considered Riemann integrable?
  • How does the Fundamental Theorem of Calculus relate to integrable functions?
  • Can a function with discontinuities still be integrable? Under what conditions?
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