engineering mathematics MCQ #964

If f(x) = e^(-x), then f'(x) = ?

engineering mathematics MCQ #964

  1. Question 1

    Q1. If f(x) = e^(-x), then f'(x) = ?

    • A) -e^(-x)
    • B) e^(-x)
    • C) -x*e^(-x)
    • D) x*e^(-x)

    Answer: -e^(-x)

    Explanation: Apply the chain rule: the derivative of e^u is e^u * du/dx, here u = -x.