Volume of Bounded Region: Solving Limits for Multiple Integration

In summary, the conversation is about finding the limits for a specific integration problem involving volume bounded by equations and variables. The suggested limits for x, y, and z are 0 to 4-2z, 0 to 1-0.5z, and 0 to ?, respectively. However, it is mentioned that there are five boundary conditions and picking a value for z beyond a finite limit will not work. Therefore, the upper limit for z is suggested to be 2.
  • #1
windy906
7
0
I'm having problems finding the limits for the follwing integration, can anyone help?

Find the volume bounded by x+2z=4 and 2y+z=2 with x,y and z>=0
 
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  • #2
I think the following limits apply but can't find the upper one for z, or in which order they should go.

x: 0 -> 4-2z
y: 0 -> 1-0.5z
z: 0 -> ?
 
  • #3
It seems like if you pick any z>=0, you can find x,y that satisfy the boundary condiitions. Hence, z should be between 0 and [tex]\infty[/tex]
 
  • #4
Office_Shredder said:
It seems like if you pick any z>=0, you can find x,y that satisfy the boundary condiitions. Hence, z should be between 0 and [tex]\infty[/tex]

There are five boundary conditions:
  1. x+2z<=4
  2. 2y+z<=2
  3. x>=0
  4. y>=0
  5. z>=0

Picking a value for z beyond some finite limit will not work.
 
  • #5
So z <= 2!

Thank you so much.
 
Last edited:

What is the concept of volume of bounded region in multiple integration?

The volume of a bounded region in multiple integration refers to the amount of space enclosed by a three-dimensional shape or region. In mathematical terms, it is the integral of a function over a specific region in three-dimensional space.

How is the volume of a bounded region calculated using multiple integration?

The volume of a bounded region can be calculated using multiple integration by setting up a triple integral and evaluating it over the given region. This involves integrating a function over each of the three dimensions that define the region.

What are the limits of integration used in calculating the volume of a bounded region?

The limits of integration used in calculating the volume of a bounded region depend on the shape and orientation of the region. For example, in a rectangular region, the limits would be the minimum and maximum values of the three variables defining the region.

Can the volume of a bounded region be negative?

No, the volume of a bounded region cannot be negative. It represents the physical space enclosed by the region and therefore must be a positive value. If a negative value is obtained when calculating the volume, it could indicate a mistake in the setup or integration process.

What are some real-world applications of calculating the volume of bounded regions using multiple integration?

The concept of volume of bounded region using multiple integration has various real-world applications. It is commonly used in engineering and physics to calculate the volume of complex three-dimensional shapes. It is also used in economics and finance to calculate the volume of irregularly shaped objects, such as stocks and bonds. Additionally, it is used in computer graphics and animation to model and render three-dimensional objects accurately.

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