vectors-m

Related Questions

• If a and b are unit vectors and $\mathbf{a}-\mathbf{b}$ is also a unit vector, then the angle between a and b is

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• If ABCD is a parallelogram and the position vectors of A, B, C are $\mathbf{i}+3\mathbf{j}+5\mathbf{k},\,\,\mathbf{i}+\mathbf{j}+\mathbf{k}$ and $7\mathbf{i}+7\mathbf{j}+7\mathbf{k},$ then the position vector of D will be

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• If the position vectors of the points A, B, C, D be $2\mathbf{i}+3\mathbf{j}+5\mathbf{k},$ $\mathbf{i}+2\mathbf{j}+3\mathbf{k},\,\,-5\mathbf{i}+4\mathbf{j}-2\mathbf{k}$ and $\mathbf{i}+10\mathbf{j}+10\mathbf{k}$ respectively, then

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• If $a=(1,\,-1,\,2),\ b=(-2,\,3,\,5)$, $\mathbf{c}=(2\,,\,-2,\,4)$ and i is the unit vector in the x-direction, then $(a-2b+3c)\,.\,i=$

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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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