Negative Volume: What Is It and How to Solve It?

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    Negative Volume
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SUMMARY

The discussion focuses on the concept of negative volume in the context of multivariable integration. A specific issue arises when integrating with respect to the variable z while x and y are held constant at zero, leading to incorrect bounds from 4 to 3. The participants emphasize the importance of recognizing dependencies between variables, specifically that the integral over z cannot be separated from the integrals over x and y when z is dependent on these variables.

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Students and professionals in mathematics, particularly those studying calculus, as well as educators seeking to clarify concepts related to multivariable integration and negative volume scenarios.

sedaw
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negative volume ?

attached herewith pdf file with the problem and my solution .
 

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Look at the bounds for your z term. If x and y are zero you're integrating from 4 to 3

Also, you can't just pull out the integral over z from the integrals over x and y when your integral over z depends on x and y
 

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