Confined Volume Calculation: How to Determine the Volume Within a Given Surface?

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SUMMARY

The discussion focuses on calculating the volume confined within the surface defined by the equation \((x+y+z)^{2}+ (2x+y+z)^{2}+ (3x+4y+z)^{2}=4\). The user seeks to transform the variables into a spherical coordinate system, specifically aiming for the form \(u^2+v^2+w^2=4\). The transformation chosen involves \(u=x+y+z\), \(v=2x+y+z\), and \(w=3x+4y+z\). The user ultimately resolves the issue with the help of hints regarding the appropriate Jacobian for the transformation.

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Homework Statement


calculate the volume confined within this surface
<br /> \left( x+y+z \right) ^{2}+ \left( 2\,x+y+z \right) ^{2}+ \left( 3\,x+<br /> 4\,y+z \right) ^{2}=4<br />

Homework Equations





The Attempt at a Solution


i know that i need to use different variables but i just can't make it
 
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What choice of coordinates will turn that into a sphere u^2+v^2+w^2=4??
 
Dick said:
What choice of coordinates will turn that into a sphere u^2+v^2+w^2=4??

even if i do choose
u=x+y+z
v=2x+y+z
w=3x+4y+z

which jacobian will i use?
because i need to use another transformation to spheerical coord...
 
Last edited:
never mind got iy thanks allot for the hint
 

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