MCQOPTIONS
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| 1. |
When the eccentricity or the distance of focus and directrix are given then the property is _________ |
| A. | F2A-F1A = constant |
| B. | F1A+F2A = constant |
| C. | e = F1A/AB<1 |
| D. | e = AB/F1A<1 |
| Answer» D. e = AB/F1A<1 | |