3-d

Related Questions

• The co-ordinates of a point P are (3, 12, 4) with respect to origin O, then the direction cosines of $OP$are

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• The point of intersection of the line $\frac{x-1}{3}=\frac{y+2}{4}=\frac{z-3}{-2}$ and plane $2x-y+3z-1=0$ is

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• The projection of the line segment joining the points (–1, 0, 3) and (2, 5, 1) on the line whose direction ratios are 6, 2, 3 is

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• The point of intersection of the lines $\frac{x-5}{3}=\frac{y-7}{-1}=\frac{z+2}{1},$ $\frac{x+3}{-36}=\frac{y-3}{2}=\frac{z-6}{4}$ is

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• If the lines $\frac{x-1}{-3}=\frac{y-2}{2k}=\frac{z-3}{2}$, $\frac{x-1}{3k}=\frac{y-5}{1}=\frac{z-6}{-5}$ are at right angles, then $k =$

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