engineering mathematics MCQ #307

The radius of the director circle of the ellipse x² + 4y² = 4 is

engineering mathematics MCQ #307

  1. Question 1

    Q1. The radius of the director circle of the ellipse x² + 4y² = 4 is

    • A) √3
    • B) √5
    • C) 2
    • D) √2

    Answer: √5

    Explanation: The radius of the director circle is √(a² + b²), where a = 2 and b = 1, so √(4 + 1) = √5.