Find the Antiderivative e^(-x)

Problem

(∫_^)(e(−x)*d(x))

Solution

1. Identify the integral as a basic exponential form (∫_^)(e(a*x)*d(x)) where a=−1

2. Apply the rule for the antiderivative of e(a*x) which is 1/a*e(a*x)+C

3. Substitute a=−1 into the formula to get 1/(−1)*e(−x)+C

4. Simplify the expression by dividing by −1

Final Answer

(∫_^)(e(−x)*d(x))=−e(−x)+C

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