Integrate Expression: Help & Tips

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The discussion focuses on integrating the expression \(\int\frac{E_0 \sin(\omega t)}{L} e^{\frac{R}{L}t} dt\). The recommended method for solving this integral by hand is integration by parts, specifically applying the product rule for differentiation. The constants E0, L, and R are acknowledged, and the user is advised to express \(\sin(\omega t)\) as the imaginary part of \(e^{i\omega t}\) to facilitate the integration process. The solution requires applying integration by parts twice and solving algebraically.

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Black Armadillo
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I'm trying to integrate the following expression:
[tex]\int\frac{E_0*sin(\omega*t)}{L}*e^{\frac{R}{L}t}dt[/tex]

Any hints on what method to use? I'd like to figure out how to do this integral by hand so please don't just give me the answer. I've already used my calculator to get that. Thanks for the help.
 
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Assuming E0, L, and R are constants, you can use the product rule: if u and v are functions of x, then (u(x)v(x))' = u'(x)v(x) + u(x)v'(x) which means
[tex]\int u'(x)v(x) dx = u(x)v(x) - \int u(x)v'(x) dx[/tex]
This is also known as integration by parts. From inspection, it appears you will have to apply it twice and then solve for the integral algebraically.
 
Write sin(ωt) as Im(eiωt).
 

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