vectors-m

Related Questions

• If the position vectors of A and B are $\mathbf{i}+3\mathbf{j}-7\mathbf{k}$ and $5\mathbf{i}-2\mathbf{j}+4\mathbf{k},$ then the direction cosine of $\overrightarrow{AB}$ along y-axis is

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• A unit vector perpendicular to the plane determined by the points (1, – 1, 2), (2, 0, – 1) and (0, 2, 1) is

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• If $\mathbf{a}=2\mathbf{i}+3\mathbf{j}-5\mathbf{k},\,\,\mathbf{b}=m\mathbf{i}+n\mathbf{j}+12\mathbf{k}$ and $\mathbf{a}\times \mathbf{b}=0,$ then $(m,\,\,n)=$

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• Five points given by A, B, C, D, E are in a plane. Three forces $\overrightarrow{AC},\,\,\overrightarrow{AD}$ and $\overrightarrow{AE}$ act at A and three forces $\overrightarrow{CB},\,\,\overrightarrow{DB},\,\,\overrightarrow{EB}$ act at B. Then their resultant is

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• If $\mathbf{a}\times \mathbf{b}=\mathbf{b}\times \mathbf{c}\ne 0$ and $\mathbf{a}+\mathbf{c}\ne 0,$ then

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