A) \[\frac{1}{2}\mathbf{i}-\frac{1}{2}\mathbf{j}+\mathbf{k}\]
B) \[2\mathbf{i}-\mathbf{j}+\frac{5}{2}\mathbf{k}\]
C) \[\frac{3}{2}\mathbf{i}-\frac{1}{2}\mathbf{j}+\frac{3}{2}\mathbf{k}\]
D) None of these
Correct Answer: B
Solution :
\[\frac{\mathbf{a}+\mathbf{b}}{2}=2\mathbf{i}-\mathbf{j}+\frac{5}{2}\mathbf{k}.\]You need to login to perform this action.
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