1. Let F be the vector field F(x, y, z) = yzi + xzj + xyk and C the ellipse given by r(t) = 5 cos t i+ (3+ 2 sin t) j. Evaluate F. dr (show/explain all steps).

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Q: 21) 0 = -2y + 10 – 6x 14 – 22 y = 18x

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Q: 23) -16 + 20х -8у%3D0 36 %3D-18у - 22х

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Q: 17) -8x – 10y= 24 6x + 5 y = 2

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Q: 18) -24 – 8x = 12y 7 1+-y =- 18 5

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