vectors-m

Related Questions

• If O be the circumcentre and O' be the orthocentre of the triangle ABC, then $\overrightarrow{O'A}+\overrightarrow{O'B}+\overrightarrow{O'C}=$

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• If $\mathbf{a}=2\mathbf{i}+\mathbf{j}-8\mathbf{k}$ and $\mathbf{b}=\mathbf{i}+3\mathbf{j}-4\mathbf{k},$ then the magnitude of $\mathbf{a}+\mathbf{b}=$

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• If $\overrightarrow{OA}=3\mathbf{i}+2\mathbf{j}-\mathbf{k}$ and $\overrightarrow{OB}=\mathbf{i}+3\mathbf{j}+\mathbf{k}$, then the area of the triangle OAB is

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• If a is any vector in space, then

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• A particle acted on by two forces $3\mathbf{i}+2\mathbf{j}-3\mathbf{k}$ and $2\mathbf{i}+4\mathbf{j}+2\mathbf{k}$ is displaced from the point $\mathbf{i}+2\mathbf{j}+\mathbf{k}$ to $5\mathbf{i}+4\mathbf{j}+2\mathbf{k}.$ The total work done by the forces is equal to

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