Question

Why does a surface F(x,y,z) that never fold back on itself have $\nabla F$ $\cdot \vec{p} \neq 0$?

score 123 · Answer 1 · 2026-04-16 08:55:22

123

Views

Why does a surface F(x,y,z) that never fold back on itself have $\nabla F$ $\cdot \vec{p} \neq 0$?

Published on 16 Apr 2026 - 8:55

score 128 · Answer 2 · 2026-04-16 06:07:14

128

Views

Find $p,q$ if $(2,3)$ is circumcentre of the triangle surrounded by sides $2x+y=0, x-y-3=0$ and $x+py=q$

Published on 16 Apr 2026 - 6:07

score 150 · Answer 3 · 2026-04-12 00:57:44

150

Views

Finding points equidistant from the corners of a convex polygon in plane

Published on 12 Apr 2026 - 0:57

score 119 · Answer 4 · 2026-04-12 17:48:06

119

Views

Find the equation of the tangents to the circle

Published on 12 Apr 2026 - 17:48

score 3.3k · Answer 5 · 2026-04-16 14:29:13

3.3k

Views

Area of projected parallelogram onto a plane.

Published on 16 Apr 2026 - 14:29

score 317 · Answer 6 · 2026-04-16 21:02:00

317

Views

Find the condition that the line $lx+my+n=0$.

Published on 16 Apr 2026 - 21:02

score 2.1k · Answer 7 · 2026-04-15 22:29:08

2.1k

Views

If the line $lx+my=1$ touches the circle $x^2+y^2=a^2$, prove

Published on 15 Apr 2026 - 22:29

score 5.3k · Answer 8 · 2026-04-12 19:11:26

5.3k

Views

Equation of The Circle Tangent to Each Axis and Passing Through a Point

Published on 12 Apr 2026 - 19:11

score 78 · Answer 9 · 2026-04-14 19:45:20

78

Views

Given that the Cartesian equations for two spheres? How to find the Cartesian equation of the circle they intersect?

Published on 14 Apr 2026 - 19:45

score 110 · Answer 10 · 2026-04-25 21:50:31

110

Views

Number of integral points that are interior to a circle

Published on 25 Apr 2026 - 21:50

score 87 · Answer 11 · 2026-04-25 21:47:56

87

Views

Equation of circle after rolling

Published on 25 Apr 2026 - 21:47

score 254 · Answer 12 · 2026-04-14 05:13:02

254

Views

Producing two functions from a rotated parabola that graph the parabola in question

Published on 14 Apr 2026 - 5:13

score 309 · Answer 13 · 2026-04-14 17:59:43

309

Views

Area of the region enclosed by the three circles that have sides of a triangle as diameters.

Published on 14 Apr 2026 - 17:59

score 446 · Answer 14 · 2026-04-13 11:34:21

446

Views

Points where $AX^2 +BX^2 = AB^2$

Published on 13 Apr 2026 - 11:34

score 17.6k · Answer 15 · 2026-04-14 13:59:30

17.6k

Views

Rotating rectangle by its center

Published on 14 Apr 2026 - 13:59

List Question

Why does a surface F(x,y,z) that never fold back on itself have $\nabla F$ $\cdot \vec{p} \neq 0$?

Find $p,q$ if $(2,3)$ is circumcentre of the triangle surrounded by sides $2x+y=0, x-y-3=0$ and $x+py=q$

Finding points equidistant from the corners of a convex polygon in plane

Find the equation of the tangents to the circle

Area of projected parallelogram onto a plane.

Find the condition that the line $lx+my+n=0$.

If the line $lx+my=1$ touches the circle $x^2+y^2=a^2$, prove

Equation of The Circle Tangent to Each Axis and Passing Through a Point

Given that the Cartesian equations for two spheres? How to find the Cartesian equation of the circle they intersect?

Number of integral points that are interior to a circle

Equation of circle after rolling

Producing two functions from a rotated parabola that graph the parabola in question

Area of the region enclosed by the three circles that have sides of a triangle as diameters.

Points where $AX^2 +BX^2 = AB^2$

Rotating rectangle by its center

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