Help me choose the correct answer/s (meaning, there coule be more than one answer) And if the answer is none, choose letter E. If possible, please explain why. Thanks! 19. Suppose that the normal unit vector N of a surface S at z = f(x,y) is determined, how does the denominator upon solvingfor the normal vector get cancelled out?A. ds = dAВ. dS 3x2 + y² dAJ² + (f,)° + 1 dAС.dS =D. dS = 120. Stoke's TheoremA. cannot be used as a substitute to find the line integral.B. will require the determination of a normal unit vector.as a line integral can be solved using its differential form.D. can be regarded both as a surface integral and line integral.С.

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Answered: 19. Suppose that the normal unit vector…

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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Help me choose the correct answer/s (meaning, there coule be more than one answer) And if the answer is none, choose letter E. If possible, please explain why. Thanks!

19. Suppose that the normal unit vector N of a surface S at z = f(x,y) is determined, how does the denominator upon solving
for the normal vector get cancelled out?
A. ds = dA
В. dS 3
x2 + y² dA
J² + (f,)° + 1 dA
С.
dS =
D. dS = 1
20. Stoke's Theorem
A. cannot be used as a substitute to find the line integral.
B. will require the determination of a normal unit vector.
as a line integral can be solved using its differential form.
D. can be regarded both as a surface integral and line integral.
С.

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