Consider the ruled surface M given by x(u, v) = (v cos u, v sin u, uv), v > 0. a. Describe this surface geometrically. b. Find the first and second fundamental forms and the Gaussian curvature of M. c. Check that the v-curves are lines of curvature.

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Consider the ruled surface M given by x(u, v) = (v cos u, v sin u, uv), v > 0.
a. Describe this surface geometrically.
b. Find the first and second fundamental forms and the Gaussian curvature of M.
c. Check that the v-curves are lines of curvature.
Transcribed Image Text:11:14 AM ← August 20, 2023 11:14 Vo Vo WiFi WiFi ■ 89 Consider the ruled surface M given by x(u, v) = (v cos u, v sin u, uv), v > 0. a. Describe this surface geometrically. b. Find the first and second fundamental forms and the Gaussian curvature of M. c. Check that the v-curves are lines of curvature.
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