engineering mathematics MCQ #558

The length of latus rectum of ellipse x²/25 + y²/9 = 1 is:

engineering mathematics MCQ #558

  1. Question 1

    Q1. The length of latus rectum of ellipse x²/25 + y²/9 = 1 is:

    • A) 9/5
    • B) 18/5
    • C) 36/5
    • D) 72/5

    Answer: 36/5

    Explanation: Latus rectum length = 2b²/a. Here, a=5, b=3 ⇒ 2*(9)/5 = 36/5.