The volume of a tetrahedron fomed by the...

The volume of a tetrahedron fomed by the coterminus edges `veca , vecb and vecc is 3` . Then the volume of the parallelepiped formed by the coterminus edges `veca +vecb, vecb+vecc and vecc + veca` is

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The correct Answer is:

`3 =-1/6 [veca vecb vecc] `
`or [veca vecb vecc] =m 18`
volume of the required parallelepiped lt brgt `[ veca + vecb vecb + vecc vecc + veca]`
` 2[veca vecb vecc] =36 `

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