vectors-m

Related Questions

• If $\overrightarrow{{{F}_{1}}}=\mathbf{i}-\mathbf{j}+\mathbf{k},$ $\overrightarrow{{{F}_{2}}}=-\mathbf{i}+2\mathbf{j}-\mathbf{k},$ $\overrightarrow{{{F}_{3}}}=\mathbf{j}-\mathbf{k},$ $\vec{A}=4\mathbf{i}-3\mathbf{j}-2\mathbf{k}$ and $\vec{B}=6\mathbf{i}+\mathbf{j}-3\mathbf{k},$ then the scalar product of $\overrightarrow{{{F}_{1}}}+\overrightarrow{{{F}_{2}}}+\overrightarrow{{{F}_{3}}}$and $\overrightarrow{AB}$ will be

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• If the angle between a and b be ${{30}^{o}}$, then the angle between 3 a and – 4 b will be

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• The points $A\,(\mathbf{a}),\,B\,(\mathbf{b}),\,C\,(\mathbf{c})$ will be collinear if

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• If $|\mathbf{a}\,.\,\mathbf{b}|\,=3$ and $|\mathbf{a}\times \mathbf{b}|\,=4,$ then the angle between a and b is

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• A unit vector perpendicular to vector c and coplanar with vectors a and b is

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