5. Consider the surface described by the parameterization r(u, v): = ((2 + sin v) cos u, (2 + sin v) sin u, u + cos v) for - < u <∞ and 0 ≤ v ≤ 2π. Find all points on the surface where the tangent plane is parallel to the xz-plane. Hint: see the book for a picture of this surface.

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A: I hope that this solution will help you .Thankyou. Best regards.

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A: This question is related to three dimensions geometry.

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A: Please see the explanation below

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