engineering mathematics MCQ #644

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

engineering mathematics MCQ #644

  1. Question 1

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

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

    Answer: -2 / (x - 1)²

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