Saved Bookmarks
| 1. |
Given a parabola `y^(2) = 4ax` and the points `A(a t^(2),2at), B(a t^(-2),2a t^(-1)), C ((4a)/(t^(2)),(4a)/(t))D (a(t+(2)/(t))^(2),-2a (t+(2)/(t)))` choose all the correct alternative.A. AB is a focal chordB. AD is a normal chordC. Normals at A,C intersect on the parabolaD. Tangents at A,B intersect at `90^(@)` on the directrix. |
|
Answer» Correct Answer - A::B::C::D AB is focal chord, tangents at which to the parabola intersect on dirextrix. AD is normal chord of the parabola. |
|