vectors-m

Related Questions

• A unit vector perpendicular to the plane determined by the points $P\,(1,\,\,-1,\,\,2),\,\,Q\,(2,\,\,0,\,-1)$ and $R\,(0,\,\,2,\,\,1)$ is

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• If $\mathbf{x}+\mathbf{y}+\mathbf{z}=0,|\mathbf{x}|=|\mathbf{y}|=|\mathbf{z}|=2$ and $\theta $ is angle between $\mathbf{y}$ and $\mathbf{z}$, then the value of $\text{cose}{{\text{c}}^{2}}\theta +{{\cot }^{2}}\theta $ is equal to

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• If a is any vector in space, then

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• If a and b are two vectors such that a . b = 0 and $\mathbf{a}\times \mathbf{b}=\mathbf{0},$ then

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• If a, b, c are mutually perpendicular unit vectors, then $|\mathbf{a}+\mathbf{b}+\mathbf{c}|\,\,=$

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