If \[\left( \frac{1}{2},\frac{1}{3},n \right)\] are the direction cosines of a line, then the value of n is [Kerala (Engg.) 2002]

If \[\left( \frac{1}{2},\frac{1}{3},n \right)\] are the direction cosi

1.	If \[\left( \frac{1}{2},\frac{1}{3},n \right)\] are the direction cosines of a line, then the value of n is [Kerala (Engg.) 2002]
A.	\[\frac{\sqrt{23}}{6}\]
B.	\[\frac{23}{6}\]
C.	\[\frac{2}{3}\]
D.	\[\frac{3}{2}\]
Answer» B. \[\frac{23}{6}\]

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If \[\left( \frac{1}{2},\frac{1}{3},n \right)\] are the direction cosines of a line, then the value of n is [Kerala (Engg.) 2002]

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