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A variable plane is at a constant distan...

A variable plane is at a constant distance p from the origin and meets the axes at A,B,C. Through A,B,C plane are drawn parallel to the co-ordinate planes. Show that the locus of their points of intersection is `1/x^2+1/y^2+1/z^2=1/p^2`.

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MODERN PUBLICATION-TEST PAPER 8-EXERCISE
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