Home » Ask & Discuss » Mathematics. » Analytical Geometry « Back to Discussion
Analytical Geometry
Comments (4)
sneha.bagri
Blazing goIITian

Joined: 5 Jan 2007
Posts: 378
9 May 2008 17:37:18 IST
Like
1 people liked this
extrimities mean d point at whoich the focal cord meets d parabola........
Reply
9 May 2008 17:42:27 IST
Like
0 people liked this
A chord is a line joining any 2 points on a curve. Its called a focal cord wen it passes thro focus. The tangent to the curve at these 2 points, when drawn n extended, will meet the directrix at rt. angles.
That is, these tangents n the directrix are concurren n the angle between the 2 tangents is a rt angle.
That is, these tangents n the directrix are concurren n the angle between the 2 tangents is a rt angle.










