Which of the following equation is true for the hyperbola, where P is – 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.	PF<sub>1</sub> PF<sub>2</sub> = a
B.	\|\|PF<sub>2</sub> \|-\|PF<sub>1</sub>\|\| = 2a
C.	\|PF<sub>1</sub> PF<sub>2</sub> \| = 2a
D.	\|PF<sub>2</sub> PF<sub>1</sub> \| = 2a
Answer» C. \|PF<sub>1</sub> PF<sub>2</sub> \| = 2a

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