engineering mathematics MCQ #563

For ellipse x²/25 + y²/9 = 1, distance between foci is:

engineering mathematics MCQ #563

  1. Question 1

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

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

    Answer: 8

    Explanation: c = √(a² - b²) = √(25-9) = 4. Distance 2c = 8.