engineering mathematics MCQ #844

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

engineering mathematics MCQ #844

  1. Question 1

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

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

    Answer: -2 / (x - 1)²

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