vectors-m

Related Questions

• If the vector $\mathbf{i}+\mathbf{j}+\mathbf{k}$ makes angles $\alpha ,\,\beta ,\,\gamma $with vectors $\mathbf{i},\,\mathbf{j},\mathbf{k}$respectively, then

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• If position vectors of a point A is $\vec{a} + 2\vec{b}$ and $\vec{a}$ divides AB in the ratio $2:3$ , then the position vector of 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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• ABCDE is a pentagon. Forces $\overrightarrow{AB},\,\overrightarrow{AE},\,\overrightarrow{DC},\,\overrightarrow{ED}$ act at a point. Which force should be added to this system to make the resultant ${{\cos }^{-1}}\frac{4}{5}$

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• If the position vectors of the points A, B, C be $\mathbf{a},\ \mathbf{b}$ , $3\mathbf{a}-2\mathbf{b}$ respectively, then the points A, B, C are

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