e^(xy) + y^2 = sin(x + y)

Answer:

(y^2)+(e^(x*y))

Assume that y is a imaginary number, y = ai

e^(axi) - a^2 = sin(x + ai)

cos(ax) + i sin(ax) - a^2 = sin x cosh a + i cos a sinh b

This seems not solvable :(