vectors-m

Related Questions

• $(2\mathbf{a}+3\mathbf{b})\times (5\mathbf{a}+7\mathbf{b})=$

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• If $|\mathbf{a}|\,=4,\,|\mathbf{b}|\,=2$ and the angle between a and b is $\frac{\pi }{6}$, then ${{(\mathbf{a}\times \mathbf{b})}^{2}}$ is equal to

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• $\mathbf{r}\times \mathbf{a}=\mathbf{b}\times \mathbf{a};\,\,\mathbf{r}\times \mathbf{b}=\mathbf{a}\times \mathbf{b};\,\,\mathbf{a}\ne 0;\,\,\mathbf{b}\ne 0;\,\,\mathbf{a}\ne \lambda \mathbf{b},\,\,$a is not perpendicular to b, then $\mathbf{r}=$

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• If a has magnitude 5 and points north-east and vector b has magnitude 5 and points north-west, then $|\,\,\mathbf{a}-\mathbf{b}\,\,|\,=$

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• If in a right angled triangle ABC, the hypotenuse $AB=p,$ then $\overrightarrow{AB}\,\,.\,\,\overrightarrow{AC}+\overrightarrow{BC}\,.\,\,\overrightarrow{BA}+\overrightarrow{CA}\,\,.\,\,\overrightarrow{CB}$ is equal to

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