If f(z) = (x2 + ay2) + i bxy is a complex analytic function of z = x + iy, where $${\text{i}} = \sqrt { - 1} ,$$ then
If f(z) = (x2 + ay2) + i bxy is a complex analytic function of z = x + iy, where $${\text{i}} = \sqrt { - 1} ,$$ then Correct Answer a = -1, b = 2