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IVP and complex solutions


Returns the following:

-1/3*log(2*y(x) - 3) + 1/3*log(y(x)) == x - 26714619/25510582*I - 27229598/58926009

I get the following result from Mathematica:

y[x] -> (1.5 E^(3 x))/(2. + E^(3 x))

Why is sage returning a complex solution? I am assuming it has to do with the logs and absolute values when integrating. Any help will be appreciated. Thanks!!!