Distance from a point (x0,y0,z0) to an axis is the square-root of the sum of squares of the other two coordinates.
From (1,2,3):
- to x-axis: 22+32=13
- to y-axis: 12+32=10
- to z-axis: 12+22=5.
The shortest distances of the point (1,2,3) from x, y, z axes respectively are
Held on 30 Aug 2022 · Verified 13 Jul 2026.
1,2,3
5,13,10
10,13,5
13,10,5
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The shortest distance between the following lines: $\vec{r} = (\hat{i} + \hat{j} - \hat{k}) + s(2\hat{i} + \hat{j} + \hat{k})$ $\vec{r} = (\hat{i} + \hat{j} + 2\hat{k}) + t(4\hat{i} + 2\hat{j} + 2\hat{k})$, where s and t are scalars, is:
The angle between the line $2x = 3y = z$ and $x$- axis is:
The angle at which the line, $\frac{x-1}{0} = \frac{2-y}{-1} = \frac{2z-3}{-2}$ is inclined with the positive direction of z-axis is
$\sin^{-1}(\cos\frac{3\pi}{5})$ equals
If lines $\frac{x+5}{5\lambda+2} = \frac{4-2y}{10} = \frac{1-3z}{-3}$ and $\frac{x-2}{1} = \frac{1+2y}{4\lambda} = \frac{2+z}{3}$ are perpendicular, than value of '$\lambda$' is
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