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## Homework Statement

calculate the volume confined within this surface

[tex]

\left( x+y+z \right) ^{2}+ \left( 2\,x+y+z \right) ^{2}+ \left( 3\,x+

4\,y+z \right) ^{2}=4

[/tex]

## Homework Equations

## The Attempt at a Solution

i know that i need to use different variables but i just cant make it