engineering mathematics MCQ #480

The distance between the foci of the ellipse x²/25 + y²/9 = 1 is

engineering mathematics MCQ #480

  1. Question 1

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

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

    Answer: 8

    Explanation: For x²/25 + y²/9 = 1, a² = 25, b² = 9, so c² = a² - b² = 16, hence 2c = 8.