In Problems 67–70 , find and interpret the value of the expression in practical terms. Let C ( t ) be the concentration of carbon dioxide in parts per million (ppm) in the air as a function of time, t , in months since December 1, 2005: 15 C ( t ) = 3.5 sin ( π t 6 ) + 381 + t 6 . C ′(60)
In Problems 67–70 , find and interpret the value of the expression in practical terms. Let C ( t ) be the concentration of carbon dioxide in parts per million (ppm) in the air as a function of time, t , in months since December 1, 2005: 15 C ( t ) = 3.5 sin ( π t 6 ) + 381 + t 6 . C ′(60)
Author: Deborah Hughes-Hallett, William G. McCallum, Andrew M. Gleason, Daniel E. Flath, Patti Frazer Lock, Sheldon P. Gordon, David O. Lomen, David Lovelock, Brad G. Osgood, Andrew Pasquale, Douglas Quinney, Jeff Tecosky-Feldman, Joseph Thrash, Karen R. Rhea, Thomas W. Tucker
In Problems 67–70, find and interpret the value of the expression in practical terms. Let C(t) be the concentration of carbon dioxide in parts per million (ppm) in the air as a function of time, t, in months since December 1, 2005:15
3.1 Limits
1. If lim f(x)=-6 and lim f(x)=5, then lim f(x). Explain your choice.
x+3°
x+3*
x+3
(a) Is 5
(c) Does not exist
(b) is 6
(d) is infinite
1 pts
Let F and G be vector fields such that ▼ × F(0, 0, 0) = (0.76, -9.78, 3.29), G(0, 0, 0) = (−3.99, 6.15, 2.94), and
G is irrotational. Then sin(5V (F × G)) at (0, 0, 0) is
Question 1
-0.246
0.072
-0.934
0.478
-0.914
-0.855
0.710
0.262
.
2. Answer the following questions.
(A) [50%] Given the vector field F(x, y, z) = (x²y, e", yz²), verify the differential identity
Vx (VF) V(V •F) - V²F
(B) [50%] Remark. You are confined to use the differential identities.
Let u and v be scalar fields, and F be a vector field given by
F = (Vu) x (Vv)
(i) Show that F is solenoidal (or incompressible).
(ii) Show that
G =
(uvv – vVu)
is a vector potential for F.
Chapter 3 Solutions
Calculus: Single And Multivariable, 7e Student Solutions Manual
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