directrix meaning in Hindi

Examples

1. The dashed blue line is the directrix of the ellipse shown.
2. Conversely, two tangents which intersect on the directrix are perpendicular.
3. One directrix and its focus is enough to produce both arms of the hyperbola.
4. But for the other conics it does, you have to use the directrix.
5. Also, the polar line of a focus of the conic is its corresponding directrix.
6. Neither Dandelin nor Quetelet used the Dandelin spheres to prove the focus-directrix property.
7. The directrix'circle'becomes a curve with zero curvature, indistinguishable from a straight line.
8. Later uses, along with " equidistant " and " directrix ", are vague and metaphorical.
9. This implies that, seen from any point on its directrix, any parabola subtends a right angle.
10. In this diagram, F is the focus of the parabola, and T and U lie on its directrix.