engineering mathematics MCQ #4282

If the roots of x² - 3x + k = 0 are real, then?

engineering mathematics MCQ #4282

  1. Question 1

    Q1. If the roots of x² - 3x + k = 0 are real, then?

    • A) k ≤ 9/4
    • B) k ≥ 9/4
    • C) k = 9/4
    • D) k < 9/4

    Answer: k ≤ 9/4

    Explanation: For real roots, the discriminant b² - 4ac ≥ 0. So, (-3)² - 4*1*k ≥ 0, hence k ≤ 9/4.