Fundamental Theorem of Calculus

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Homework Help Overview

The discussion revolves around the Fundamental Theorem of Calculus and its application to the integral \(\int_0^{49\pi^2} \frac{\sin(\sqrt{x})}{\sqrt{x}} \, dx\). Participants are exploring the relationship between definite integrals and antiderivatives, questioning the nature and implications of the theorem.

Discussion Character

  • Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster questions whether to solve the integral as a regular integral and seeks clarification on the significance of the Fundamental Theorem of Calculus. Some participants suggest using substitution to apply the theorem, while others discuss the historical context and implications of the theorem linking integration and differentiation.

Discussion Status

The discussion is active, with participants providing insights into the theorem's significance and its application to the integral in question. There are varying interpretations of the theorem's implications, and some guidance has been offered regarding the use of substitution.

Contextual Notes

Participants are navigating the definitions and applications of the Fundamental Theorem of Calculus, with some expressing confusion about its naming and relevance to the integral presented.

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Question :[tex]\int_0^{49pi^2} (sin(sqrt(x))/(sqrt(x)) dx[/tex]


should i just solve it as a regular integral like usally and then do F(b) - F(a)? if so, why is it called Fundamental Theorem of Calculus if it's just like a regular integral?
 
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The Fundamental Theorem of Calculus allows u to compute definite integrals of functions,using their antiderivatives.That's all to it...

Is your integral
[tex]\int_{0}^{49\pi^{2}} \frac{\sin\sqrt{x}}{\sqrt{x}} dx[/tex]

??

If so,then a simple substitution will allow u to use the theorem.

Daniel.
 
The reason why it's called fundamental is mostly historical, but partly because it's quite remarkable that integration and differentiation are linked. On the face of it, the theory of derivatives is about limits of functions at a point, whereas integration is about the limits of sums, so it's not immediately obvious that the two are linked. The FTC shows that they are.

(pretty useful result to have - calculating integrals from first principles would be very tedious!)

Kane
 
Why is WHAT called "Fundamental Theorem of Calculus"? Certainly it's not this integral which is what your question seems to imply!

It is the "Fundamental Theorem of Calculus" that allows you to do "regular integrals".
 
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