MCQ
$\int \frac{d x}{e^{-x}}=$
  • A
    $\frac{-1}{e^{-x}}+k$
  • $e^x+k$
  • C
    $\frac{1}{e^{-x}} \cdot \frac{1}{x^2}+k$
  • D
    $-e^{-x}+k$

Answer

Correct option: B.
$e^x+k$
B

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