3-d

Related Questions

• If the distance of the point (1, 1,1) from the origin is half its distance from the plane $x+y+z+k=0$ , then $k=$

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• If the points (–1, 3, 2), (–4, 2, –2) and $(5,\,\,5,\,\,\lambda )$ are collinear, then $\lambda $=

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• The point of intersection of lines $\frac{x-4}{5}=$ $\frac{y-1}{2}=\frac{z}{1}$ and $\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}$ is

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• If $\theta $ is the angle between the lines $AB$ and $CD$, then projection of line segment $AB$on line $CD$, is

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• The angle between the lines whose direction cosines are proportional to (1, 2, 1) and (2, –3, 6) is

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