Question

Do these lines in 3D space intersect?

score 42 · Answer 1 · 2026-04-11 15:18:43

42

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Do these lines in 3D space intersect?

Published on 11 Apr 2026 - 15:18

score 55 · Answer 2 · 2026-04-10 03:16:52

55

Views

Equation of Plane involving Intersection of planes

Published on 10 Apr 2026 - 3:16

score 258 · Answer 3 · 2026-04-13 10:40:33

258

Views

What are some nice proofs-by-cutting-and-pasting?

Published on 13 Apr 2026 - 10:40

score 454 · Answer 4 · 2026-04-11 08:17:14

454

Views

What is the maximum number of regions in 3D space a plane can intersect?

Published on 11 Apr 2026 - 8:17

score 54 · Answer 5 · 2026-04-17 01:51:54

54

Views

How to solve the following differential equation of a figure of eight?

Published on 17 Apr 2026 - 1:51

score 2.1k · Answer 6 · 2026-04-16 09:04:11

2.1k

Views

distance between intersection of two planes and origin

Published on 16 Apr 2026 - 9:04

score 151 · Answer 7 · 2026-04-17 14:37:26

151

Views

Prove that $n$ lines form $[n(n+1)/2]+1$

Published on 17 Apr 2026 - 14:37

score 112 · Answer 8 · 2026-04-14 07:11:47

112

Views

When a third vector in a plane does not lie in the span of 2 linearly independent vectors in the plane

Published on 14 Apr 2026 - 7:11

score 187 · Answer 9 · 2026-04-30 15:11:10

187

Views

Find value of angle B

Published on 30 Apr 2026 - 15:11

score 263 · Answer 10 · 2026-04-09 06:26:11

263

Views

Approach on solving a word problem based on cyclic geometry

Published on 09 Apr 2026 - 6:26

score 43 · Answer 11 · 2026-04-16 12:36:23

43

Views

Line and distance equation

Published on 16 Apr 2026 - 12:36

score 54 · Answer 12 · 2026-04-17 11:54:32

54

Views

Distance of a plane

Published on 17 Apr 2026 - 11:54

score 664 · Answer 13 · 2026-04-17 05:43:30

664

Views

Given a plane and a line, find the equation of another plane that has an angle 30 of degree to the given plane and contains the given line.

Published on 17 Apr 2026 - 5:43

score 136 · Answer 14 · 2026-04-09 18:17:00

136

Views

In $\bigtriangleup OAB,\angle\mathrm{AOB}=90^\circ.$ Let C lie on segment $AB$ such that $\overrightarrow{OC}\;\perp\;\overrightarrow{AB}$.

Published on 09 Apr 2026 - 18:17

score 2k · Answer 15 · 2026-04-16 05:52:46

2k

Views

What is the radius of the red circle?

Published on 16 Apr 2026 - 5:52

List Question

Do these lines in 3D space intersect?

Equation of Plane involving Intersection of planes

What are some nice proofs-by-cutting-and-pasting?

What is the maximum number of regions in 3D space a plane can intersect?

How to solve the following differential equation of a figure of eight?

distance between intersection of two planes and origin

Prove that $n$ lines form $[n(n+1)/2]+1$

When a third vector in a plane does not lie in the span of 2 linearly independent vectors in the plane

Find value of angle B

Approach on solving a word problem based on cyclic geometry

Line and distance equation

Distance of a plane

Given a plane and a line, find the equation of another plane that has an angle 30 of degree to the given plane and contains the given line.

In $\bigtriangleup OAB,\angle\mathrm{AOB}=90^\circ.$ Let C lie on segment $AB$ such that $\overrightarrow{OC}\;\perp\;\overrightarrow{AB}$.

What is the radius of the red circle?

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