vectors-m

Related Questions

• If $|a|\,=\,|\mathbf{b}|,$ then $(a+b)\,.\,(a-b)$ is

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• If the moduli of a and b are equal and angle between them is ${{120}^{o}}$ and $\mathbf{a}\,.\,\mathbf{b}=-\,8,$ then | a | is equal to

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• If $O$ is origin and $C$ is the mid point of $A(2,\,\,-1)$ and $B(-4,\,3)$ . Then value of $\overrightarrow{OC}$ is

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• If $\mathbf{a}=\mathbf{i}+2\mathbf{j}+3\mathbf{k},\,\,\,\mathbf{b}=-\mathbf{i}+2\mathbf{j}+\mathbf{k}$ and $\mathbf{c}=3\mathbf{i}+\mathbf{j},$ then the unit vector along its resultant is

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• The angle between the vectors a + b and a – b, when $\mathbf{a}=(1,\,1,\,4)$ and $b=(1,\,-1,\,4)$ is

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