(a) Sketch the image of o. (Hint: Be careful about the domain of o.) Moreover, on your sketch, indicate (i) one path obtained by holding v constant and varying u, and (ii) one path obtained by holding u constant and varying v. (b) Find the unit normals to S at the point (0, 1,0). (c) Consider the surface integral where F is the real-valued function J₁F F. dA,

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Consider the surface
S = {(x, y, z) € R³ | x² + 4y² + 4z² = 4},
and consider the following parametrisation of S:
σ: (0, π) × (0, π) → S,
o(u, v) = (2 cos u sin v, sin u sin v, cos v).
(a) Sketch the image of o. (Hint: Be careful about the domain of o.) Moreover, on
your sketch, indicate (i) one path obtained by holding v constant and varying u,
and (ii) one path obtained by holding u constant and varying v.
(b) Find the unit normals to S at the point (0, 1,0).
(c) Consider the surface integral
SSF
F. dA,
where F is the real-valued function
F: R³ → R,
F(x, y, z)=4-x² - 4y²-42².
Find the value of this surface integral. (Hint: You can obtain the answer with
only a very minimal amount of computations.)
Transcribed Image Text:Consider the surface S = {(x, y, z) € R³ | x² + 4y² + 4z² = 4}, and consider the following parametrisation of S: σ: (0, π) × (0, π) → S, o(u, v) = (2 cos u sin v, sin u sin v, cos v). (a) Sketch the image of o. (Hint: Be careful about the domain of o.) Moreover, on your sketch, indicate (i) one path obtained by holding v constant and varying u, and (ii) one path obtained by holding u constant and varying v. (b) Find the unit normals to S at the point (0, 1,0). (c) Consider the surface integral SSF F. dA, where F is the real-valued function F: R³ → R, F(x, y, z)=4-x² - 4y²-42². Find the value of this surface integral. (Hint: You can obtain the answer with only a very minimal amount of computations.)
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