vectors-m

Related Questions

• The position vectors of A and B are $2\mathbf{i}-9\mathbf{j}-4\mathbf{k}$ and $6\mathbf{i}-3\mathbf{j}+8\mathbf{k}$ respectively, then the magnitude of $\overrightarrow{AB}$ is

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• The value of x for which the angle between the vectors $\mathbf{a}=x\mathbf{i}-3\mathbf{j}-\mathbf{k},\,\,\mathbf{b}=2x\mathbf{i}+x\mathbf{j}-\mathbf{k}$ is acute and the angle between the vectors b and the axis of ordinate is obtuse, are

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• The unit vector parallel to the resultant vector of $2\mathbf{i}+4\mathbf{j}-5\mathbf{k}$ and $\mathbf{i}+2\mathbf{j}+3\mathbf{k}$ is

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• If $\mathbf{a},\mathbf{b}$ and $\mathbf{c}$ are perpendicular to $\mathbf{b}+\mathbf{c},\mathbf{c}+\mathbf{a}$and $\mathbf{a}+\mathbf{b}$ respectively and if $|\mathbf{a}+\mathbf{b}|=6,|\mathbf{b}+\mathbf{c}|=8$ and $|\mathbf{c}+\mathbf{a}|=10$ then $|\mathbf{a}+\mathbf{b}+\mathbf{c}|=$

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• If $ai+6j-k$ and $7i-3j+17k$ are perpendicular vectors, then the value of a is

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