Precalculus
Coursera
Curso diseñado para facilitar la entrada del estudiante en los cursos de cálculo de primer semestre de prácticamente cualquier grado universitario, con especial énfasis en Ciencias e Ingeniería.
More resources on Analytic Geometry
Math24 - Analytic Geometry
Free tutorials and problems
Paul's Online Math Notes - Analytic Geometry
Free notes on lines, circles, conics
Multivariable Calculus (includes analytic geom)
Master multivariable calculus and analytic geometry with this comprehensive course from Denis Auroux at MIT. Explore key concepts and problem-solving techniques!
mathworld.wolfram.com
MathWorld is Wolfram’s comprehensive online mathematics encyclopedia featuring concise, formula-rich articles on topics from algebra to geometry, including analytic geometry. Each entry provides definitions, key formulas, explanations, diagrams, and links to related concepts and references.
Analytic Geometry
Analytic Geometry - A book resource
ocw.mit.edu
MIT OpenCourseWare offers free, openly licensed course materials from MIT across disciplines, including mathematics. You can access lecture notes, assignments, exams, and video lectures from a wide range of courses to study analytic geometry and related topics at your own pace.