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Integrals — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMathsIntegrals1 Mark
Question
Find $\int x e^{x} d x$
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Answer

Take first function as x and second function as $e^x$. The integral of the second function is $e^x$​​​​​​​
Therefore, $\int x e^{x} d x=x e^{x}-\int 1 \cdot e^{x} d x=x e^{x}-e^{x}+C$

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