A) a, b, c are in A.P.
B) a, b, c are in G.P.
C) a, b, c are in H.P.
D) None of these
Correct Answer: C
Solution :
Semi latus rectum is harmonic mean between segments of focal chords of a parabola. \ \[b=\frac{2ac}{a+c}\] Þ a, b, c are in H.P.You need to login to perform this action.
You will be redirected in
3 sec