Question: Verifica si la funci n U ( x , y ) = e - x c o s ( y ) - e - y

Verifica si la funcin
U(x,y)=e-xcos(y)-e-ycos(x)
es una solucin de la ecuacin de Laplace.
Nota: Se dice que una funcin es una solucin de la ecuacin de Laplace si satisface la ecuacin:
Uyxy+Uyy=0
Para esto determina:
a) La segunda derivada parcial con respecto a x.
b) La segunda derivada parcial con respecto a y.
c)Es solucin de la ecuacin de Laplace?
Verifica si la funci n U ( x , y ) = e - x c o s

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