Question

$C, C_1, C_2, C_3$ are four circles of radii $5, 3, 2, x$ units respectively. Find $x$.

score 153 · Answer 1 · 2017-03-12 17:01:19

153

Views

$C, C_1, C_2, C_3$ are four circles of radii $5, 3, 2, x$ units respectively. Find $x$.

Published on 12 Mar 2017 - 17:01

score 135 · Answer 2 · 2026-04-06 20:37:33

135

Views

How do I find the area of an inscribed triangle with a vertex at the intersection of an ellipse and a hyperbola with the same foci?

Published on 06 Apr 2026 - 20:37

score 112 · Answer 3 · 2026-04-01 06:08:34

112

Views

Odd use of determinants in a product related to a problem of analytical geometry

Published on 01 Apr 2026 - 6:08

score 3.1k · Answer 4 · 2026-04-02 15:23:47

3.1k

Views

Why ellipse is a "conic" section?

Published on 02 Apr 2026 - 15:23

score 4.3k · Answer 5 · 2026-03-31 05:58:14

4.3k

Views

Distance between ellipse and line

Published on 31 Mar 2026 - 5:58

score 182 · Answer 6 · 2017-03-15 20:34:51

182

Views

vector equation of a plane that contains a point P0 and its perpendicular uXv

Published on 15 Mar 2017 - 20:34

score 764 · Answer 7 · 2017-03-15 21:10:19

764

Views

What equation describes the face of a cube?

Published on 15 Mar 2017 - 21:10

score 40 · Answer 8 · 2017-03-16 02:44:24

40

Views

Solve by using equation of line in 2D

Published on 16 Mar 2017 - 2:44

score 1.2k · Answer 9 · 2017-03-17 09:55:57

1.2k

Views

How to prove that 3 points are on the same line by the distance between the points

Published on 17 Mar 2017 - 9:55

score 172 · Answer 10 · 2017-03-17 12:15:52

172

Views

$\alpha(t)=(\cos(t),\sin(t),f(t))$ must be a flat curve.

Published on 17 Mar 2017 - 12:15

score 79 · Answer 11 · 2026-04-06 20:30:53

79

Views

Why general and Standard cases exists for conic sections?

Published on 06 Apr 2026 - 20:30

score 66 · Answer 12 · 2026-03-28 14:44:27

66

Views

Equation of a circle with a point on it and two tangents

Published on 28 Mar 2026 - 14:44

score 82 · Answer 13 · 2017-03-21 03:53:51

82

Views

The max area of a tangential parallelogram of an ellipse

Published on 21 Mar 2017 - 3:53

score 814 · Answer 14 · 2017-03-21 13:39:36

814

Views

Equation of a triangle in three dimensional complex plane.

Published on 21 Mar 2017 - 13:39

score 57 · Answer 15 · 2026-03-30 06:50:05

57

Views

Prob. 20, Sec. 1.1 in Strang's intro to Linear Algebra, 4th ed: Given three vectorss, what combination will lie inside or on the triangle?

Published on 30 Mar 2026 - 6:50

List Question

$C, C_1, C_2, C_3$ are four circles of radii $5, 3, 2, x$ units respectively. Find $x$.

How do I find the area of an inscribed triangle with a vertex at the intersection of an ellipse and a hyperbola with the same foci?

Odd use of determinants in a product related to a problem of analytical geometry

Why ellipse is a "conic" section?

Distance between ellipse and line

vector equation of a plane that contains a point P0 and its perpendicular uXv

What equation describes the face of a cube?

Solve by using equation of line in 2D

How to prove that 3 points are on the same line by the distance between the points

$\alpha(t)=(\cos(t),\sin(t),f(t))$ must be a flat curve.

Why general and Standard cases exists for conic sections?

Equation of a circle with a point on it and two tangents

The max area of a tangential parallelogram of an ellipse

Equation of a triangle in three dimensional complex plane.

Prob. 20, Sec. 1.1 in Strang's intro to Linear Algebra, 4th ed: Given three vectorss, what combination will lie inside or on the triangle?

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