engineering mathematics MCQ #722

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

engineering mathematics MCQ #722

  1. Question 1

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

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

    Answer: 1 / (x + 1)²

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