Triple Integral Homework: Negative & Positive Answers?

In summary, the conversation is discussing the solutions to two equations, one with a negative answer and the other with a positive answer. The first equation is simple, with a solution of z^2-z, while the second equation involves splitting an integral and using symmetry to find the solution. The solution to the second equation is a negative value for a and 0 for b.
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  • #2
Regarding (b): What happens when you split the integral into the part where x>0 and the part where x<0, how are they related?
 
  • #3
(a) is pretty simple isn't it? [itex]z\le 1[/itex] so [itex]z^2- z[/itex]is what?

For (b) use "symmetry" as yyat suggests.
 
  • #4
so a is negative and b is 0?
 
  • #5
-EquinoX- said:
so a is negative and b is 0?

Yes.
 
  • #6
thanks
 

1. What is a triple integral?

A triple integral is a mathematical concept that represents the volume of a three-dimensional shape. It involves integrating a function over a three-dimensional region.

2. What is the significance of negative and positive answers in triple integrals?

Negative and positive answers in triple integrals indicate the direction of the flow of a vector field. Negative answers represent inward flow while positive answers represent outward flow.

3. How do I solve a triple integral with negative and positive answers?

To solve a triple integral with negative and positive answers, you need to set up the integral based on the given region and then apply the appropriate limits of integration. Once the integral is set up, you can use mathematical techniques such as substitution or partial fractions to solve it.

4. Can the order of integration affect the sign of the answer in a triple integral?

Yes, the order of integration can affect the sign of the answer in a triple integral. This is because the direction of the flow of a vector field can change depending on the order in which the variables are integrated.

5. Are there any common mistakes to avoid when solving triple integrals with negative and positive answers?

Yes, some common mistakes to avoid when solving triple integrals with negative and positive answers include forgetting to include the appropriate negative sign in the integral, setting up the integral in the wrong order, and not carefully considering the given region and its boundaries.

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