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Solve: uxx + uyy = 0 in {(x,y) st x2 + y2 < 1 , x...

Solve:

uxx + uyy = 0 in {(x,y) st x2 + y2 < 1 , x > 0, y > 0}

u = 0 on x=0 and y=0

∂u/∂r = 1 on r=1

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