engineering mathematics MCQ #1000

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

engineering mathematics MCQ #1000

  1. Question 1

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

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

    Answer: -1 / x²

    Explanation: Apply the power rule for differentiation: if f(x) = x^n, then f'(x) = nx^(n-1); here, n = -1.