New posts in Analytic Geometry

Equation of a plane passing through 3 points

Prove that for a given point on an ellipse, the sum of the distances from each focal point is constant

How to determine if a point lies on the same side of the plane that origin does?

A variant of Heron's shortest distance problem (with three points instead of two)

How do you derive a normal vector from the equation of a line?

Equilateral Triangle: An Interesting Result

Circle: finding locus of the chord's mid point

Example of a heptagonal polyhedron?

Why only two tangents can be drawn to a parabola from a point outside it?

Isosceles triangle