The monkey saddle z = x³ - 3xy² can be intersected with the cylinder x² + y² = 1 to produce the curve shown in blue. The next few questions pertain to this curve. -10 Which vector function parametrizes this curve? (It may be helpful to use the identity cos 30 cos³ - cos 0 sin²0.) Or(t) =< cost, sint, cos 3t>, t = [0, 2π] Or(t) =< cost, sin 3t, cost >, t€ [0, 2π] Or(t) =< cos 3t, sin 3t, cos 3t >, t€ [0, 2n/3] r(t): =< cos 3t, sint, cost >, t€ [0, 2n] 16) What are the maximum and minimum distances of points on this curve from the origin? 1c) If a solenoidal force field F=<-y, x, 0> moves a particle once around this curve, counterclockwise as viewed from above the xy-plane, how much work does it do?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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la)
The monkey saddle z = x³ - 3xy² can be intersected with the cylinder
x² + y²
= 1 to produce the curve shown in blue. The next few questions pertain
to this curve.
10
-10
-2
Which vector function parametrizes this curve? (It may be helpful to use the identity
cos 30 = cos³0 cos sin²0.)
Or(t) =< cost, sint, cos 3t >, t = [0, 2π]
Or(t) =< cost, sin 3t, cost >, t = [0, 2π]
Or(t) =< cos 3t, sin 3t, cos 3t >, t = [0, 2π/3]
Or(t) =< cos 3t, sint, cost >, t = [0, 2π]
16)
What are the maximum and minimum distances of points on this curve from the
origin?
1c)
If a solenoidal force field F=<-y, x, 0> moves a particle once around this
curve, counterclockwise as viewed from above the xy-plane, how much work does it
do?
Transcribed Image Text:la) The monkey saddle z = x³ - 3xy² can be intersected with the cylinder x² + y² = 1 to produce the curve shown in blue. The next few questions pertain to this curve. 10 -10 -2 Which vector function parametrizes this curve? (It may be helpful to use the identity cos 30 = cos³0 cos sin²0.) Or(t) =< cost, sint, cos 3t >, t = [0, 2π] Or(t) =< cost, sin 3t, cost >, t = [0, 2π] Or(t) =< cos 3t, sin 3t, cos 3t >, t = [0, 2π/3] Or(t) =< cos 3t, sint, cost >, t = [0, 2π] 16) What are the maximum and minimum distances of points on this curve from the origin? 1c) If a solenoidal force field F=<-y, x, 0> moves a particle once around this curve, counterclockwise as viewed from above the xy-plane, how much work does it do?
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