engineering mathematics MCQ #925

If f(x) = x + 1/x, then f'(x) = ?

engineering mathematics MCQ #925

  1. Question 1

    Q1. If f(x) = x + 1/x, then f'(x) = ?

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

    Answer: 1 - 1/x²

    Explanation: Differentiate term by term, applying the power rule for 1/x as x^(-1), yielding f'(x) = 1 - 1/x².