vectors-m

Related Questions

• The direction cosines of vector $\mathbf{a}=3\mathbf{i}+4\mathbf{j}+5\mathbf{k}$ in the direction of positive axis of x, is

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• What should be added in vector $\mathbf{a}=3\mathbf{i}+4\mathbf{j}-2\mathbf{k}$ to get its resultant a unit vector $\mathbf{i}$

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• Let a and b be two unit vectors inclined at an angle $\theta $, then $\sin \,(\theta /2)$ is equal to

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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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• Which of the following is not a property of vectors

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