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For an analytic function f(x + iy) = u(i y) +...

This question belongs to Engineering Maths Complex Variable
Complex Variable
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For an analytic function, f(x + iy) = u(i, y) + iv(i, y), u is given by u = 3x2 - 3y. The expression for v, considering K to be a constant is

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Correct Answer: Option D
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