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- Add F - f (x, y) where r = e 'cos v and y = e' sin v, show that AF AI AF dF AF AF '= r - Y-- and -: - l - T.r--.Teorema de residuos: muestre que z=0 es un cero de orden 2 de 1-cos(z)After seeing the additional solution for Fx(x,y), shouldn't it be -2sin(e2x) instead of positive 2sin(e2x) since it is Fx = 0 - sin(e2x)(2)