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1. |
Eccentricity (e) of the conic sections __________ when the distance of a point on the conic sections from the focus is f and the distance of the same point from the directrix is d. |
A. | d*f |
B. | d/f |
C. | f/d |
D. | d*f*0.5 |
E. | of the conic sections __________ when the distance of a point on the conic sections from the focus is f and the distance of the same point from the directrix is d.a) d*fb) d/fc) f/dd) d*f*0.5 |
Answer» D. d*f*0.5 | |