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The real part of a f (z) complex function is given as (x,y)=y^3-3x^2y. Show the harmonic...


The real part of a f (z) complex function is given as (x,y)=y^3-3x^2y. Show the harmonic function u(x,y) and find the expressions v(x,y) and f(z). Calculate f'(1+2i) and write x+iy algebraically.

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