Normals at three points P, Q, R at the parabola y 2 = 4ax meet in a point A and S be its…
Mathematics · JEE Advanced · NTA Exams — Co-ordinate Geometry
Normals at three points P, Q, R at the parabola y2 = 4ax meet in a point A and S be its focus, if |SP|. |SQ| . |SR| = λ(SA)2, then λ is equal to
- a3
- a2
- a
- 1
Answer
(C) a
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