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If a point moves so that the sum of the ...

If a point moves so that the sum of the squars of its distances from the six faces of a cube having length of each edge 2 units is 104 units then the distance of the point from point (1,1,1) is (A) a variable (B) a constant equal to 7 units (C) a constant equal to 4 uinits (D) a constant equal to 49 units

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