GATE CH 2022 | Question: 3

Question

Let $f\left ( x \right ) = e ^{-\left |x \right |}$, where $x$ is real. The value of $\dfrac{df}{dx}$ at $x = -1$ is

• A. $-e$
• B. $e$
• C. $\frac{1}{e}$
• D. $\frac{-1}{e}$