A variable plane passes through a fixed point (1, 2, 3). The locus of the foot of the perpendicular from the origin to this plane is given by

\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-14=0\]

\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+x+2y+3z=0\]

\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-x-2y-3z=0\]

A variable plane passes through a fixed point (1, 2, 3). The locus of

1.	A variable plane passes through a fixed point (1, 2, 3). The locus of the foot of the perpendicular from the origin to this plane is given by
A.	\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-14=0\]
B.	\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}+x+2y+3z=0\]
C.	\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}-x-2y-3z=0\]
D.	None of these
Answer» D. None of these

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A variable plane passes through a fixed point (1, 2, 3). The locus of the foot of the perpendicular from the origin to this plane is given by

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