engineering mathematics MCQ #4321

For the equation x² - 2x + k = 0, if roots are real, then?

engineering mathematics MCQ #4321

  1. Question 1

    Q1. For the equation x² - 2x + k = 0, if roots are real, then?

    • A) k ≤ 1
    • B) k ≥ 1
    • C) k = 1
    • D) k = 0

    Answer: k ≤ 1

    Explanation: For real roots, discriminant b² - 4ac ≥ 0, so (-2)² - 4*1*k ≥ 0, giving k ≤ 1.