A) \[3\mathbf{i}+5\mathbf{j}+4\mathbf{k}\]
B) \[\frac{3\mathbf{i}+5\mathbf{j}+4\mathbf{k}}{50}\]
C) \[\frac{3\mathbf{i}+5\mathbf{j}+4\mathbf{k}}{5\sqrt{2}}\]
D) None of these
Correct Answer: C
Solution :
\[\mathbf{R}=3\mathbf{i}+5\mathbf{j}+4\mathbf{k}\Rightarrow \mathbf{\hat{R}}=\frac{3\mathbf{i}+5\mathbf{j}+4\mathbf{k}}{5\sqrt{2}}.\]You need to login to perform this action.
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