The harmonic mean of the segments of a f...

The harmonic mean of the segments of a focal chord of the parabola `y^(2)=16ax,` is

A

2a

B

4a

C

8a

D

16a

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The correct Answer is:

C

The harmonic mean of the segments of a focal chord of the parabola is its semi-latusrectum i.e. 8a.

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