Question

Find intersection of all plan $n^{2}x+(2n-1)y+nz=3$

score 35 · Answer 1 · 2020-11-09 12:31:43

35

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Find intersection of all plan $n^{2}x+(2n-1)y+nz=3$

Published on 09 Nov 2020 - 12:31

score 1k · Answer 2 · 2020-11-10 07:45:46

1k

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Find a side of smaller triangle

Published on 10 Nov 2020 - 7:45

score 272 · Answer 3 · 2020-11-11 03:19:02

272

Views

Seeking a geometric characterisation of a certain property of a circle, a tangent ellipse within it, and a point strictly within the ellipse.

Published on 11 Nov 2020 - 3:19

score 88 · Answer 4 · 2020-11-11 05:10:55

88

Views

Equation of three lines passing through the origin

Published on 11 Nov 2020 - 5:10

score 182 · Answer 5 · 2020-11-11 13:46:19

182

Views

How does $axy+bx+cy+d=0$ represent a rectangular hyperbola?

Published on 11 Nov 2020 - 13:46

score 1k · Answer 6 · 2026-03-29 02:46:52

1k

Views

Covering a polygon with an odd number of sides

Published on 29 Mar 2026 - 2:46

score 604 · Answer 7 · 2020-11-12 10:31:40

604

Views

Given $\angle A = 60°, \angle B = 80°, \angle C = 40°$, find $\alpha$

Published on 12 Nov 2020 - 10:31

score 244 · Answer 8 · 2026-03-28 14:55:04

244

Views

Number of integer points inside an equilateral triangle with side length $n\in\mathbb{N}$

Published on 28 Mar 2026 - 14:55

score 120 · Answer 9 · 2020-11-18 02:33:29

120

Views

Why does the plane equation use any normal vector rather than exactly the unit normal?

Published on 18 Nov 2020 - 2:33

score 161 · Answer 10 · 2020-11-18 14:29:40

161

Views

Advanced Euclidean Geometry Problems Books for school level

Published on 18 Nov 2020 - 14:29

score 279 · Answer 11 · 2020-11-18 20:42:39

279

Views

How many triangles can be formed from the vertices of a polygon of $n$ sides if the triangle and the polygon may not share sides?

Published on 18 Nov 2020 - 20:42

score 122 · Answer 12 · 2026-03-27 18:01:46

122

Views

Where did the Wikipedia solution to the Snub Dodecahedron originate?

Published on 27 Mar 2026 - 18:01

score 427 · Answer 13 · 2020-11-22 05:24:14

427

Views

Converse of little Desargues theorem

Published on 22 Nov 2020 - 5:24

score 103 · Answer 14 · 2020-11-22 14:40:59

103

Views

How to factorize equation of pair of lines?

Published on 22 Nov 2020 - 14:40

score 226 · Answer 15 · 2026-03-28 14:19:34

226

Views

Is a finite tiling of 45-45-90 triangles uniquely determined from the resulting union (up to trivial flips)?

Published on 28 Mar 2026 - 14:19

List Question

Find intersection of all plan $n^{2}x+(2n-1)y+nz=3$

Find a side of smaller triangle

Seeking a geometric characterisation of a certain property of a circle, a tangent ellipse within it, and a point strictly within the ellipse.

Equation of three lines passing through the origin

How does $axy+bx+cy+d=0$ represent a rectangular hyperbola?

Covering a polygon with an odd number of sides

Given $\angle A = 60°, \angle B = 80°, \angle C = 40°$, find $\alpha$

Number of integer points inside an equilateral triangle with side length $n\in\mathbb{N}$

Why does the plane equation use any normal vector rather than exactly the unit normal?

Advanced Euclidean Geometry Problems Books for school level

How many triangles can be formed from the vertices of a polygon of $n$ sides if the triangle and the polygon may not share sides?

Where did the Wikipedia solution to the Snub Dodecahedron originate?

Converse of little Desargues theorem

How to factorize equation of pair of lines?

Is a finite tiling of 45-45-90 triangles uniquely determined from the resulting union (up to trivial flips)?

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