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प्रश्न
Write a value of
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उत्तर
Let I=\[\int\] ex (sin x + cos x) dx
⇒ (ex . sin x + ex cos x) dx = dt
\[\therefore I = \int dt\]
\[ = t + C\]
\[ = e^x \sin x + C \left( \because t = e^x \sin x \right)\]
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