. Let f(x+iy) = u(x, y) + iv(x, y), where u : R² → R and v : R² → R are defined by u(x, y) = x + 2xy, v(x, y) = y²x² - y. This defines a corresponding complex function f: C → C. (c) Does there exist a function F: C → C such that F'(z) = f(z)? If your answer is yes, give this function f. If you believe the answer is no, argue why such an F cannot exist.

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