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Prove that if a plane has the intercepts a, b, c and is at a distance of p units from the origin, then `(1)/(a^2)+(1)/(b^2)+(1)/(c^2)=(1)/(p^2)`

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Hence proved `(1)/(a^2)+(1)/(b^2)+(1)/(c^2)=(1)/(p^2)`.
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KUMAR PRAKASHAN-THREE DIMENSIONAL GEOMETRY-MISCELLANEOUS EXERCISE-11
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