Given F(x, y) = (e*y°(cos(x) + ¢(x)), 2ye*o(x)), with h E C'(R). then O (A) it does not exist o such that F is irrotational (B) if the circuitation of Falong a closed curve vanishes, then Fis conservative (C)F is conservative for every o O D)if¢(x) sin(x) + 1. F is conservative

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