Conic Sections Question 422
Question: The difference of the focal distance of any point on the hyperbola $ 9x^{2}-16y^{2}=144 $ , is
[MP PET 1995; Orissa JEE 2004]
Options:
A) 8
B) 7
C) 6
D) 4
Show Answer
Answer:
Correct Answer: A
Solution:
The hyperbola is $ \frac{x^{2}}{16}-\frac{y^{2}}{9}=1. $ We have difference of focal distance $ =2a=8 $ .
BETA
