Assume C is a circle centered at the origin, oriented counter clockwise, that encloses disk R in the plane. Complete the following steps for each vector field F . a. Calculate the two-dimensional curl of F . b. Calculate the two-dimensional divergence of F . c. Is F irrotational on R ? d. Is F source free on R ? 10. F = 〈 y , − x 〉
Assume C is a circle centered at the origin, oriented counter clockwise, that encloses disk R in the plane. Complete the following steps for each vector field F . a. Calculate the two-dimensional curl of F . b. Calculate the two-dimensional divergence of F . c. Is F irrotational on R ? d. Is F source free on R ? 10. F = 〈 y , − x 〉
Solution Summary: The author calculates the two dimensional curl of the vector field F=langle y,-xrangle with f(x,y)=y
Assume C is a circle centered at the origin, oriented counter clockwise, that encloses disk R in the plane. Complete the following steps for each vector field F.
a. Calculate the two-dimensional curl of F.
b. Calculate the two-dimensional divergence of F.
c. Is F irrotational on R?
d. Is F source free on R?
10.
F
=
〈
y
,
−
x
〉
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
39. (a) Show that Σeak converges for each α > 0.
(b) Show that keak converges for each a > 0.
k=0
(c) Show that, more generally, Σk"eak converges for each
k=0
nonnegative integer n and each a > 0.
#3 Find the derivative y' = of the following functions, using the derivative rules:
dx
a) y-Cos 6x b) y=x-Sin4x c) y=x-Cos3x d) y=x-R CD-X:-:TCH :D:D:D - Sin
f)
Sin(x²) (9) Tan (x³)
mate
hat is the largest area that can be en
18 For the function y=x³-3x² - 1, use derivatives to:
(a) determine the intervals of increase and decrease.
(b) determine the local (relative) maxima and minima.
(c) determine the intervals of concavity.
(d) determine the points of inflection.
b)
(e) sketch the graph with the above information indicated on the graph.
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