The direction cosines of the normal to the plane \[x+2y-3z+4=0\] are [MP PET 1996; Pb. CET 2000]

\[\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]

\[-\frac{1}{\sqrt{14}},-\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]

\[-\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]

\[\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},-\frac{3}{\sqrt{14}}\]

The direction cosines of the normal to the plane \[x+2y-3z+4=0\] are

1.	The direction cosines of the normal to the plane \[x+2y-3z+4=0\] are [MP PET 1996; Pb. CET 2000]
A.	\[-\frac{1}{\sqrt{14}},-\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]
B.	\[\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]
C.	\[-\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]
D.	\[\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},-\frac{3}{\sqrt{14}}\]
Answer» B. \[\frac{1}{\sqrt{14}},\frac{2}{\sqrt{14}},\frac{3}{\sqrt{14}}\]

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The direction cosines of the normal to the plane \[x+2y-3z+4=0\] are [MP PET 1996; Pb. CET 2000]

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