vectors-m

Related Questions

• $(\mathbf{a}\,.\,\mathbf{i})\,\mathbf{i}+(\mathbf{a}\,.\,\mathbf{j})\mathbf{j}+(\mathbf{a}\,.\,\mathbf{k})\,\mathbf{k}=$

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• If $\theta$ be the angle between the unit vectors a and b, then $\cos \frac{\theta }{2}=$

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• The number of vectors of unit length perpendicular to vectors $\mathbf{a}=(1,\,\,1,\,\,0)$ and $\mathbf{b}=(0,\,\,1,\,\,1)$ is

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• The position vectors of two points A and B are $\mathbf{i}+\mathbf{j}-\mathbf{k}$ and $2\mathbf{i}-\mathbf{j}+\mathbf{k}$ respectively. Then $|\overrightarrow{AB}|\,\,=$

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• If $ABCDEF$ is regular hexagon, then $\overrightarrow{AD}\,+\overrightarrow{EB}+\overrightarrow{FC}=$

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