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Let F=4zi4xk\vec { F } = 4 z \vec { i } - 4 x \vec { k }

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Let F=4zi4xk\vec { F } = 4 z \vec { i } - 4 x \vec { k } Let C be the circle of radius a parameterized by x = a cos t, y = 0, z = a sin t, 0 \le t \le 2 π\pi and let S be the disk in the xz-plane enclosed by C, oriented in the positive y-direction.
(a)Evaluate directly CFdr\int _ { C } \vec { F } \cdot d \vec { r } (b)Evaluate directly ScurlFdA\int _ { S } \operatorname { curl } { \vec { F } } \cdot d \vec { A } (c)Do these results contradict Stokes' Theorem?

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