APM346-2015F > Final Exam

FE-4

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Vivian Tan:

--- Quote from: Vivian Tan on December 18, 2015, 10:55:16 PM ---\begin{equation}
u(x,t) = u(r, \theta) = r \frac{5}{3} \sin n \theta - \frac{1}{r} \frac{2}{3} \sin n \theta
\end{equation}

--- End quote ---

Sorry, there aren't supposed to be n's, those are supposed to be just $\sin \theta$.

So the solution should be:
\begin{equation}
u(x,t) = u(r, \theta) = r \frac{5}{3} \sin \theta - \frac{1}{r} \frac{2}{3} \sin\theta
\end{equation}

Victor Ivrii:
Vivian's solution is correct.

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