Question: Show that f ( z ) = 3 x 2 + 2 x - 3 y 2 - 1 + i ( 6 x y

Show that f(z)=3x2+2x-3y2-1+i(6xy+2y) is differentiable at every point in the plane (ie an entice function)
Show that f ( z ) = 3 x 2 + 2 x - 3 y 2 - 1 + i (

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