3-d

Related Questions

• The point dividing the line joining the points $(1,\,\,2,\,\,3)$and $(3,\,\,-5,\,\,6\,)$ in the ratio $3:\,-5$ is

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• If the co-ordinates of the points $A,B,C,D$ be (2, 3, –1), (3, 5, – 3), (1, 2, 3) and (3, 5, 7) respectively, then the projection of $AB$ on $CD$ is

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• The angle between the straight lines $\frac{x+1}{2}=\frac{y-2}{5}=\frac{z+3}{4}$ and $\frac{x-1}{1}=\frac{y+2}{2}=\frac{z-3}{-3}$ is

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• The graph of the equation ${{y}^{2}}+{{z}^{2}}=0$ in three dimensional space is

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• If the direction cosines of a line are $\left( \frac{1}{c},\frac{1}{c},\frac{1}{c} \right)$, then

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