engineering mathematics MCQ #601

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

engineering mathematics MCQ #601

  1. Question 1

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

    • A) 8 units
    • B) 6 units
    • C) 10 units
    • D) 4 units

    Answer: 8 units

    Explanation: Distance between foci is 2c, where c = √(a² - b²). a²=25, b²=9. c=4, so 2c=8.