vectors-m

Related Questions

• 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 $\vec{a}$ and $\vec{b}$ are two non-zero and non-collinear vectors, then $\vec{a} + \vec{b}$ and $\vec{a} – \vec{b}$ are

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• The vectors a, b and a + b are

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• If the position vectors of A and B be $6\mathbf{i}+\mathbf{j}-3\mathbf{k}$ and $4\mathbf{i}-3\mathbf{j}-2\mathbf{k},$ then the work done by the force $\vec{B}=\mathbf{i}+\mathbf{j}+5\mathbf{k}$ in displacing a particle from A to B is

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• The position vector of vertices of a triangle ABC are $4\mathbf{i}-2\mathbf{j},\,\mathbf{i}+4\mathbf{j}-3\mathbf{k}$ and $-\mathbf{i}+5\mathbf{j}+\mathbf{k}$ respectively, then $\angle ABC=$

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