vectors-m

Related Questions

• If a and b are two non-collinear vectors and $x\,\mathbf{a}+y\,\mathbf{b}=0$

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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 $\mathbf{i},\,\,\mathbf{j},\,\,\mathbf{k}$ are unit orthonormal vectors and a is a vector, if $\mathbf{a}\times \mathbf{r}=\mathbf{j},$ then a . r is

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• If $\mathbf{a}=2\mathbf{i}+4\mathbf{j}-5\mathbf{k}$ and $\mathbf{b}=\mathbf{i}+2\mathbf{j}+3\mathbf{k}$, then $|\mathbf{a}\times \mathbf{b}|$ is

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• If the position vectors of the vertices of a triangle be $2\mathbf{i}+4\mathbf{j}-\mathbf{k},$ $4\mathbf{i}+5\mathbf{j}+\mathbf{k}$ and $3\mathbf{i}+6\mathbf{j}-3\mathbf{k},$ then the triangle is

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