If int(2e^(x) +3e^(-x))/(4e^(x)+7e^(-x))...

If `int(2e^(x) +3e^(-x))/(4e^(x)+7e^(-x))dx=(1)/(14)(ux+v log_(e ) (4e^(x)+7e^(-x)))+C`, where C is a constant of integration, then ` u+v ` is equal to ________.

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