Maths-
General
Easy
Question
Tangents drawn to parabola 
= 4ax at the points A and B intersect at C. Ordinate of A, C and B forms
- a A.P.
- a G.P
- a H.P
- None of these
The correct answer is: a H.P
Clearly, both the lines pass through (-a, b) which is a point lying on the directrix of the parabola.
C 
(a
, a(
))
Clearly the ordinates of A,C, B are in A.P.
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