engineering mathematics MCQ #4320

If α, β are roots of ax² + bx + c = 0, then 1/α + 1/β = ?

engineering mathematics MCQ #4320

  1. Question 1

    Q1. If α, β are roots of ax² + bx + c = 0, then 1/α + 1/β = ?

    • A) -b/c
    • B) b/c
    • C) -c/b
    • D) c/b

    Answer: -b/c

    Explanation: Using α + β = -b/a and αβ = c/a, 1/α + 1/β = (α + β) / αβ = (-b/a) / (c/a) = -b/c.