engineering mathematics MCQ #313

The distance between the foci of the ellipse 25x² + 9y² = 225 is

engineering mathematics MCQ #313

  1. Question 1

    Q1. The distance between the foci of the ellipse 25x² + 9y² = 225 is

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

    Answer: 8

    Explanation: First, convert the equation to standard form: x² / 9 + y² / 25 = 1. Then, c = √(25 - 9) = 4, so 2c = 8.