A unit vector perpendicular to the vector \[4\mathbf{i}-\mathbf{j}+3\mathbf{k}\] and \[-2\mathbf{i}+\mathbf{j}-2\mathbf{k}\] is [MNR 1995]

\[\frac{1}{3}\,(2\mathbf{i}+\mathbf{j}+2\mathbf{k})\]

\[\frac{1}{3}\,(\mathbf{i}-2\mathbf{j}+2\mathbf{k})\]

\[\frac{1}{3}\,(-\mathbf{i}+2\mathbf{j}+2\mathbf{k})\]

\[\frac{1}{3}\,(2\mathbf{i}-2\mathbf{j}+2\mathbf{k})\]

A unit vector perpendicular to the vector \[4\mathbf{i}-\mathbf{j}+3\m

1.	A unit vector perpendicular to the vector \[4\mathbf{i}-\mathbf{j}+3\mathbf{k}\] and \[-2\mathbf{i}+\mathbf{j}-2\mathbf{k}\] is [MNR 1995]
A.	\[\frac{1}{3}\,(\mathbf{i}-2\mathbf{j}+2\mathbf{k})\]
B.	\[\frac{1}{3}\,(-\mathbf{i}+2\mathbf{j}+2\mathbf{k})\]
C.	\[\frac{1}{3}\,(2\mathbf{i}+\mathbf{j}+2\mathbf{k})\]
D.	\[\frac{1}{3}\,(2\mathbf{i}-2\mathbf{j}+2\mathbf{k})\]
Answer» C. \[\frac{1}{3}\,(2\mathbf{i}+\mathbf{j}+2\mathbf{k})\]

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