Guest

A chord of parabola y^2 = 4ax subtends a right angle at the vertex. The tangents at the extremities of the chord intersect on (A) x+a = 0 (B) x + 2a = 0 (C) x+3a = 0 .(D) x +4a = 0

A chord of parabola y^2 = 4ax subtends a right angle at the vertex. The tangents at the extremities of the chord intersect on 
(A) x+a = 0  (B) x + 2a = 0  (C) x+3a = 0 .(D) x +4a = 0

Grade:12

1 Answers

Arun
25757 Points
4 years ago
A chord of parabola y^2 = 4ax subtends a right angle at the vertex. The tangents at the extremities of the chord intersect on x+4a =0
It is an important result to be remembered
 
Regards
Arun

Think You Can Provide A Better Answer ?