Fundamental theorem of calculus for double integral

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SUMMARY

The discussion centers on the application of the Fundamental Theorem of Calculus to double integrals, specifically how to find the antiderivative of a function f(x,y) within the context of a double integral. The integral in question is represented as ∫_{2}^{8} ∫_{2}^{6} f(x,y) dx dy. Participants clarify that this is an iterative integral, which requires solving the inner integral first and using its result as the integrand for the outer integral. This method effectively transforms a double integral into two sequential single integrals.

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  • Understanding of double integrals in multivariable calculus
  • Familiarity with the Fundamental Theorem of Calculus
  • Knowledge of antiderivatives and their computation
  • Experience with iterative integration techniques
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Bruno Tolentino
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I was reading about double integral when a doubt came to my mind: how to find the antiderivative of the function f(x,y), like bellow, and compute the fundamental theorem of calculus for double integral?

Integrale_multiplo_-_parallelepipedo.png

\int_{2}^{8} \int_{2}^{6} f(x,y) dx \wedge dy = ?

OBS: It's not an exercise. I know how to compute the integral above, but, I don't know how do it through of the antiderivative and applying the theorema fundamental of calclus, like that \int_{a}^{b} f(x) dx = \int_{a}^{b} \frac{dF(x)}{dx} dx = F(b) - F(a). I'm not found anything similar to this...
 
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What you've set up is called an iterative integral. In its current form, you solve it by first solving the inner integral and then making that answer the integrand for the outer integral. So essentially you can turn a double integral into two single integrals.
 

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