 
			 
			MCQOPTIONS
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				| 1. | Which of the following equation is true for the hyperbola, where P is on the hyperbola curve, F1, F2 are the two fixed points, the foci, and a is the distance from the vertices of the hyperbola to its center. | 
| A. | PF1 – PF2 = a | 
| B. | ||PF2 |-|PF1|| = 2a | 
| C. | |PF1 – PF2 | = 2a | 
| D. | |PF2 – PF1 | = 2a | 
| Answer» C. |PF1 – PF2 | = 2a | |