vectors-m

Related Questions

• If $A\,(-1,\,\,2,\,\,3),\,\,B\,(1,\,\,1,\,\,1)$ and $C\,(2,\,\,-1,\,\,3)$ are points on a plane. A unit normal vector to the plane ABC is

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• The points with position vectors $10\,\mathbf{i}+3\,\mathbf{j},\,\,12\,\mathbf{i}-5\,\mathbf{j}$ and $a\,\mathbf{i}+11\,\mathbf{j}$ are collinear, if $a=$

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• If three points A, B and C have position vectors $(1,\,x,\,3),\,\,(3,\,4,\,7)$ and $ap+bq+cr=1$ respectively and if they are collinear, then $(x,\,y)=$

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• A unit vector which is perpendicular to $\mathbf{i}+2\mathbf{j}-2\mathbf{k}$ and $-\mathbf{i}+2\mathbf{j}+2\mathbf{k}$ is

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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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