Given that f(z, y) = z (2y+4) +y(7z - 14) is a potential function for F = (2y+4+7y, 2z + Ta - 14). calculate the integral F. dr. where Cis the upper haif of the unit circle oriented counterclockwise with parameterization r(1) = (co(t), sin(). O 5 sE Enter an enact answer. Provide your answer below

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