Integration of e^t sint cost in a limit zero to imfinte
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multiply from 2 and devide....sin(2t)=2*sin(t)*cos(t)
it will be 0.5e^t sin(2t)
let 2t=x
then you will see that it is the standard result of e^x sin(x)
it will be 0.5e^t sin(2t)
let 2t=x
then you will see that it is the standard result of e^x sin(x)
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