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Terris Becker edited untitled.tex
almost 8 years ago
Commit id: 461ecca69a26d70fb46144fe4e25bedf1ac7632e
deletions | additions
diff --git a/untitled.tex b/untitled.tex
index d8c4a5d..c7eca05 100644
--- a/untitled.tex
+++ b/untitled.tex
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&-2u^{2}u^{2}_y-2uvv_yu_y-2uvu_yv_y-2v^{2}v^{2}_y
\end{align*}
But since $u$ and $v$ are harmonic, $u_{xx}+u_{yy}=0$ and $v_{xx}+v_{yy}=0$. Using this fact and combining like terms gives us,
$$-u^{2}u^{2}_x+u^{2}v^{2}_x+v^{2}u^{2}_x-v^{2}_v^{2}_x-4uvu_xv_x-u^{2}u^{2}_y+u^{2}v^{2}_y+v^{2}u^{2}_y-v^{2}v^{2}_y-4uvu_yv_y$$ $$-u^{2}u^{2}_x+u^{2}v^{2}_x+v^{2}u^{2}_x-v^{2}v^{2}_x-4uvu_xv_x-u^{2}u^{2}_y+u^{2}v^{2}_y+v^{2}u^{2}_y-v^{2}v^{2}_y-4uvu_yv_y$$
\end{proof}