1.

A variable plane is at a constant distance p from the origin and meets the axes in A, B and C. The locus of the centroid of the triangle ABC is

Answer»

<P>`x ^(2) + y ^(2) + z^(-2) = p ^(-2)`
`x ^(2) + y ^(2) + z ^(-2) = 4p ^(-2)`
`x ^(-2) + y ^(-2) + z ^(-2) = 16 p ^(-2)`
`x %(2) + y ^(-2) + z ^(-2) = 9P ^(-2)`

Answer :D


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