A-Level Maths: H5-41 Further Integration: Integrate sin(x)*e^x

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it's also cool using De Moivre's theorem here which i very recently discovered if you just compare the imaginary parts at the end

ELLIPTICALWR
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Is this a question that could come up in the edexcel exam? It's titled 'EXTENSTION', which is why I'm asking

lidiabejerea
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Our teacher told us to let u = e^x for some reason.

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