engineering mathematics MCQ #736

If y = e^(-x), then d²y/dx² = ?

engineering mathematics MCQ #736

  1. Question 1

    Q1. If y = e^(-x), then d²y/dx² = ?

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

    Answer: e^(-x)

    Explanation: First derivative is -e^(-x). Second derivative is derivative of -e^(-x), which is e^(-x).