For the hyperbola x²/9 - y²/16 = 1, find the distance between foci.
Question 1
Q1. For the hyperbola x²/9 - y²/16 = 1, find the distance between foci.
Answer: 10
Explanation: c² = a² + b² = 9 + 16 = 25 => c=5. Distance between foci = 2c = 10.