engineering mathematics MCQ #544

The foci of the ellipse x²/25 + y²/9 = 1 are?

engineering mathematics MCQ #544

  1. Question 1

    Q1. The foci of the ellipse x²/25 + y²/9 = 1 are?

    • A) (±4, 0)
    • B) (±3, 0)
    • C) (0, ±4)
    • D) (0, ±3)

    Answer: (±4, 0)

    Explanation: For x²/a² + y²/b² = 1, foci are (±√(a²-b²), 0). Here, √(25-9) = 4, so foci are (±4, 0).