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A hyperbola has ___________ vertices and ____________ foci.(a) two, one(b) one, one(c) one, two(d) two, twoI got this question by my school principal while I was bunking the class.This intriguing question comes from Conic Sections in division Conic Sections of Mathematics – Class 11

Answer»

Correct answer is (d) two, two

For EXPLANATION I WOULD SAY: A hyperbola has two vertices lying on each end and two foci lying inside the hyperbola.

If P is a point on hyperbola and F1 and F2 are foci then |PF1-PF2| remains CONSTANT.



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