Question

Is there a general equation for an n-ellipse?

score 482 · Answer 1 · 2026-04-13 11:22:26

482

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Is there a general equation for an n-ellipse?

Published on 13 Apr 2026 - 11:22

score 183 · Answer 2 · 2015-10-16 16:09:07

183

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Given known and and unknown line equation and maximising area of triangle condition.

Published on 16 Oct 2015 - 16:09

score 6.4k · Answer 3 · 2015-10-16 16:46:50

What is the coordinate of a point $P$ on the line $2x-y+5=0$ such that $|PA-PB|$ is maximum where $A=(4,-2)$ and $B=(2,-4)$

score 1.2k · Answer 4 · 2026-04-13 13:56:59

1.2k

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Not coplanar points in $\mathbb{R}^3$ if and only if its determinant is nonzero

Published on 13 Apr 2026 - 13:56

score 184 · Answer 5 · 2026-04-13 05:43:12

184

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Determine 4th vertice of tetrahedron

Published on 13 Apr 2026 - 5:43

score 1.5k · Answer 6 · 2015-10-17 04:39:35

$A$ is a point on either of the two lines $y+\sqrt3|x|=2$ at a distance of $\frac{4}{\sqrt3}$ units from their point of intersection.

score 2.2k · Answer 7 · 2026-04-12 06:41:44

2.2k

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The focus and length of the latus rectum of the parabola $y = x \tan \theta - \frac{gx^2}{2u^2 \cos^2 \theta}$

Published on 12 Apr 2026 - 6:41

score 926 · Answer 8 · 2015-10-17 08:15:09

Incenter of the triangle formed by the lines whose are $3x+4y=0;5x-12y=0$ and $y-15=0$ is the point $P$ whose coordinates are $(1,8)$

score 2.6k · Answer 9 · 2015-10-17 10:42:02

Let $M$ be a point on the straight line $L\equiv x+y=0$ such that $|AM-BM|$ is minimum,then the area of triangle AMB

score 22.9k · Answer 10 · 2015-10-17 15:52:40

22.9k

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The equation of a pair of tangents to a circle from a point.

Published on 17 Oct 2015 - 15:52

score 1.1k · Answer 11 · 2015-10-17 16:44:40

Let points $A,B,C$ are represented by $(a\cos\theta_1,a\sin\theta_1),(a\cos\theta_2,a\sin\theta_2),(a\cos\theta_3,a\sin\theta_3)$ respectively

score 51 · Answer 12 · 2026-04-13 19:43:45

51

Views

Showing that lines from this family do not intersect for different $\alpha$.

Published on 13 Apr 2026 - 19:43

score 604 · Answer 13 · 2015-10-18 03:45:37

604

Views

Find an equation of the sphere with center at $(2, 1, −1)$ and radius $4$

Published on 18 Oct 2015 - 3:45

score 1.2k · Answer 14 · 2026-04-13 11:05:54

1.2k

Views

When do the linear combinations of three vectors fill out the triangle?

Published on 13 Apr 2026 - 11:05

score 2.1k · Answer 15 · 2026-04-05 23:16:27

2.1k

Views

Find equations of the line through a given point that meets another line at certain distance

Published on 05 Apr 2026 - 23:16

List Question

Is there a general equation for an n-ellipse?

Given known and and unknown line equation and maximising area of triangle condition.

What is the coordinate of a point $P$ on the line $2x-y+5=0$ such that $|PA-PB|$ is maximum where $A=(4,-2)$ and $B=(2,-4)$

Not coplanar points in $\mathbb{R}^3$ if and only if its determinant is nonzero

Determine 4th vertice of tetrahedron

$A$ is a point on either of the two lines $y+\sqrt3|x|=2$ at a distance of $\frac{4}{\sqrt3}$ units from their point of intersection.

The focus and length of the latus rectum of the parabola $y = x \tan \theta - \frac{gx^2}{2u^2 \cos^2 \theta}$

Incenter of the triangle formed by the lines whose are $3x+4y=0;5x-12y=0$ and $y-15=0$ is the point $P$ whose coordinates are $(1,8)$

Let $M$ be a point on the straight line $L\equiv x+y=0$ such that $|AM-BM|$ is minimum,then the area of triangle AMB

The equation of a pair of tangents to a circle from a point.

Let points $A,B,C$ are represented by $(a\cos\theta_1,a\sin\theta_1),(a\cos\theta_2,a\sin\theta_2),(a\cos\theta_3,a\sin\theta_3)$ respectively

Showing that lines from this family do not intersect for different $\alpha$.

Find an equation of the sphere with center at $(2, 1, −1)$ and radius $4$

When do the linear combinations of three vectors fill out the triangle?

Find equations of the line through a given point that meets another line at certain distance

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