# How to Use The Fundamental Theorem of Calculus | Summary and Q&A

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May 17, 2022
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The Math Sorcerer
How to Use The Fundamental Theorem of Calculus

## TL;DR

The fundamental theorem of calculus relates definite integrals to anti-derivatives, simplifying computations and eliminating the need for the constant of integration.

## Key Insights

• 💻 The fundamental theorem of calculus provides a powerful formula for computing definite integrals using anti-derivatives.
• ❓ The constant of integration is not required when evaluating definite integrals.
• 🫥 Different notations, such as brackets or a line, can be used to represent definite integrals.
• 👻 Understanding the fundamental theorem of calculus allows for faster and more efficient computations.
• 💨 The theorem relates the concepts of integration and differentiation in a fundamental way.
• ❓ By using the fundamental theorem of calculus, definite integrals can be easily evaluated for various functions.
• ❓ The theorem simplifies the process of calculating areas under curves and finding accumulated quantities.

## Transcript

in this lecture we're going to introduce the fundamental theorem of calculus and do various examples so the theorem is stated as follows if a function which we'll call say little f is continuous on a b the closed interval a b and big f is an anti-derivative anti-derivative of little f on a b then we have the following super powerful formula i mean ... Read More

### Q: What is the fundamental theorem of calculus?

The fundamental theorem of calculus states that the definite integral of a function f from a to b is equal to the antiderivative of f evaluated at the upper limit of integration minus the antiderivative evaluated at the lower limit.

### Q: How does the fundamental theorem of calculus simplify computations?

The theorem eliminates the need to evaluate difficult limit processes for definite integrals by expressing them in terms of easily computed antiderivatives. Additionally, the constant of integration is not needed when calculating definite integrals.

### Q: What is the significance of not needing the constant of integration in definite integrals?

By not including the constant of integration, the theorem allows for quicker calculations and avoids confusion that can arise from forgetting to include the constant or determining its value.

### Q: How does the fundamental theorem of calculus relate anti-derivatives and definite integrals?

The fundamental theorem of calculus establishes a direct connection between anti-derivatives and definite integrals by stating that an anti-derivative of a function can be used to evaluate the definite integral over the same interval.

## Summary & Key Takeaways

• The fundamental theorem of calculus states that if a function f is continuous on the interval [a, b] and F is an anti-derivative of f on that interval, then the definite integral of f from a to b is equal to F(b) - F(a).

• The theorem simplifies computations by linking definite integrals to anti-derivatives, eliminating the need for the constant of integration.

• The notation for definite integrals can be represented with brackets or a line and it's important to understand how to interpret them correctly.