engineering mathematics MCQ #619

If y = x / (x + 1), find dy/dx

engineering mathematics MCQ #619

  1. Question 1

    Q1. If y = x / (x + 1), find dy/dx

    • A) 1 / (x + 1)²
    • B) -1 / (x + 1)²
    • C) x / (x + 1)²
    • D) (x + 1) / x²

    Answer: 1 / (x + 1)²

    Explanation: Using quotient rule, dy/dx = ((x + 1) d(x)/dx - x d(x + 1)/dx) / (x + 1)² = 1 / (x + 1)²