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. (a) Show that the function u= 4x2 - 12.xy2 is harmonic and v=12.xy-4v2 is a harmonic conjugate of u. [Consequently, the fun

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7:03 AM Mon 16 Dec O 48%D (a) u = la*y-чу 12nt - 12y? = Ju : -d -14ng %3D uis a hermomic comjugeti fu :. Surin de = Jo{nany-

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