The locus of the point, the sum of squares of whose distances, from the planes x - z = 0, x - 2y + z = 0 and x +

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Q 2135578462.     The locus of the point, the sum of squares of whose
distances, from the planes

x - z = 0, x - 2y + z = 0 and x + y + z = 0 is 36 is
A

x^2 + y^2 +z^2 =6

B

x^2 + y^2 +z^2 = 36

C

x^2 + y^2 +z^2 =216

D

x^(-2) + y^(-2) +z^(-2) =1/36`

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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