6. Find a harmonic function o(z, y) satisfying Ao = 0, y > 0, -00 < x< +o0 $(z,0) = -1, r < -5; ø(z,0) = 0,-5 < 1 < -1; 6(x, 0) = 2, -1 2 %3D Write your solution in terms of tan- or Arg.

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