engineering mathematics MCQ #745

If y = (2x + 1) / (x + 1), then dy/dx at x = 1 = ?

engineering mathematics MCQ #745

  1. Question 1

    Q1. If y = (2x + 1) / (x + 1), then dy/dx at x = 1 = ?

    • A) 1 / 4
    • B) 1 / 2
    • C) -1 / 4
    • D) -1 / 2

    Answer: 1 / 4

    Explanation: Using the quotient rule: (u/v)' = (u'v - uv')/v², and then substituting x = 1.