Question

How to find the minimum distance from origin to locus of P?

score 1.3k · Answer 1 · 2026-03-25 11:14:56

1.3k

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How to find the minimum distance from origin to locus of P?

Published on 25 Mar 2026 - 11:14

score 56 · Answer 2 · 2026-03-27 04:38:21

56

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Decompose a unit ball into 3 convex disjoint parts parts with common boundary

Published on 27 Mar 2026 - 4:38

score 124 · Answer 3 · 2026-03-25 01:24:00

124

Views

General form of quadric surfaces

Published on 25 Mar 2026 - 1:24

score 347 · Answer 4 · 2026-03-25 01:34:07

347

Views

Derive the implicit cone equation from the implicit circle equation

Published on 25 Mar 2026 - 1:34

score 279 · Answer 5 · 2026-03-26 06:32:54

279

Views

Problem on tangents drawn to a circle

Published on 26 Mar 2026 - 6:32

score 653 · Answer 6 · 2019-02-17 19:07:59

653

Views

Finding the direction vector of a tangent line given one point

Published on 17 Feb 2019 - 19:07

score 787 · Answer 7 · 2026-03-25 07:46:00

787

Views

If $a$, $b$ and $c$ are sides of a triangle, then prove that $a^\text{2}(b+c-a) + b^\text{2}(c+a-b) + c^\text{2}(a+b-c)$ $\leqslant$ $3abc$

Published on 25 Mar 2026 - 7:46

score 113 · Answer 8 · 2026-03-26 19:20:10

113

Views

Given six 3D vectors a,b,c,d,e,f, find the rotation matrix R such that Ra, Rb, Rc are respectively perp. to d,e,f (assuming there exists a solution)

Published on 26 Mar 2026 - 19:20

score 7k · Answer 9 · 2019-02-19 17:50:27

7k

Views

General equation of cylinder surface

Published on 19 Feb 2019 - 17:50

score 160 · Answer 10 · 2019-02-20 22:42:36

160

Views

What is the function that maps circumferal distance onto circular area

Published on 20 Feb 2019 - 22:42

score 599 · Answer 11 · 2019-02-22 13:28:21

599

Views

Shortest Distance to Point from Parabola.

Published on 22 Feb 2019 - 13:28

score 435 · Answer 12 · 2019-02-23 02:19:59

435

Views

Show that all normals to $\gamma(t)=(\cos(t)+t\sin(t),\sin(t)-t\cos(t))$ are the same distance from the origin.

Published on 23 Feb 2019 - 2:19

score 179 · Answer 13 · 2019-02-23 13:06:01

An object's Position $P$ changes so that its distance from $(1,2,-3)$ is always twice its distance from $(1,2,3).$ Show $P$ is on a sphere.

score 137 · Answer 14 · 2019-02-26 10:47:05

137

Views

Geometrical meaning of the formula for the area of a triangle using a $3\times3$ matrix.

Published on 26 Feb 2019 - 10:47

score 54 · Answer 15 · 2026-03-25 03:22:51

54

Views

Are semianalytic sets Lebesgue measurable?

Published on 25 Mar 2026 - 3:22

List Question

How to find the minimum distance from origin to locus of P?

Decompose a unit ball into 3 convex disjoint parts parts with common boundary

General form of quadric surfaces

Derive the implicit cone equation from the implicit circle equation

Problem on tangents drawn to a circle

Finding the direction vector of a tangent line given one point

If $a$, $b$ and $c$ are sides of a triangle, then prove that $a^\text{2}(b+c-a) + b^\text{2}(c+a-b) + c^\text{2}(a+b-c)$ $\leqslant$ $3abc$

Given six 3D vectors a,b,c,d,e,f, find the rotation matrix R such that Ra, Rb, Rc are respectively perp. to d,e,f (assuming there exists a solution)

General equation of cylinder surface

What is the function that maps circumferal distance onto circular area

Shortest Distance to Point from Parabola.

Show that all normals to $\gamma(t)=(\cos(t)+t\sin(t),\sin(t)-t\cos(t))$ are the same distance from the origin.

An object's Position $P$ changes so that its distance from $(1,2,-3)$ is always twice its distance from $(1,2,3).$ Show $P$ is on a sphere.

Geometrical meaning of the formula for the area of a triangle using a $3\times3$ matrix.

Are semianalytic sets Lebesgue measurable?

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