engineering mathematics MCQ #574

For ellipse x²/25 + y²/9 = 1, what is the distance between foci?

engineering mathematics MCQ #574

  1. Question 1

    Q1. For ellipse x²/25 + y²/9 = 1, what is the distance between foci?

    • A) 8
    • B) 6
    • C) 10
    • D) 12

    Answer: 8

    Explanation: c = √(25 - 9) = 4; distance = 2c = 8.