vectors-m

Related Questions

• If the vectors $3i+\lambda \,j+k$ and $2i-j+8k$ are perpendicular, then $\lambda $ is

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• If $\theta$ be the angle between the unit vectors a and b, then $\mathbf{a}-\sqrt{2}\,\mathbf{b}$ will be a unit vector if $\theta =$

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• If the vectors $\mathbf{i}-3\mathbf{j}+2\mathbf{k}$, $-\mathbf{i}+2\mathbf{j}$ represents the diagonals of a parallelogram, then its area will be

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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 $\overrightarrow{{{F}_{1}}}=\mathbf{i}-\mathbf{j}+\mathbf{k},$ $\overrightarrow{{{F}_{2}}}=-\mathbf{i}+2\mathbf{j}-\mathbf{k},$ $\overrightarrow{{{F}_{3}}}=\mathbf{j}-\mathbf{k},$ $\vec{A}=4\mathbf{i}-3\mathbf{j}-2\mathbf{k}$ and $\vec{B}=6\mathbf{i}+\mathbf{j}-3\mathbf{k},$ then the scalar product of $\overrightarrow{{{F}_{1}}}+\overrightarrow{{{F}_{2}}}+\overrightarrow{{{F}_{3}}}$and $\overrightarrow{AB}$ will be

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