## Extending the Ideas 75

MATHEMATICS · Subjective · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

## Extending the Ideas 75. Prove that a nondegenerate graph of the equation Ax2+Cy2+Dx+Ey+F=0A x^{2}+C y^{2}+D x+E y+F=0 is an ellipse if AC>0A C>0.

Related theory

Browse the problem library