Research and Development: Industry The total spent on research and development by industry in the United States during 2002–2012 can be approximated by S ( t ) = 29 ln t + 164 billion dollars ( 2 ≤ t ≤ 12 ) , where t is the year since 2000. What was the total spent in 2010 ( t = 10 ) , and how fast was it increasing? [ HINT: See Quick Examples 1 and 2.]
Research and Development: Industry The total spent on research and development by industry in the United States during 2002–2012 can be approximated by S ( t ) = 29 ln t + 164 billion dollars ( 2 ≤ t ≤ 12 ) , where t is the year since 2000. What was the total spent in 2010 ( t = 10 ) , and how fast was it increasing? [ HINT: See Quick Examples 1 and 2.]
Solution Summary: The author calculates the total spent by the industry in 2010 by substituting t=10 in the function S(t).
Research and Development: Industry The total spent on research and development by industry in the United States during 2002–2012 can be approximated by
S
(
t
)
=
29
ln
t
+
164
billion dollars
(
2
≤
t
≤
12
)
,
where t is the year since 2000. What was the total spent in
2010
(
t
=
10
)
, and how fast was it increasing? [HINT: See Quick Examples 1 and 2.]
(7) (12 points) Let F(x, y, z) = (y, x+z cos yz, y cos yz).
Ꮖ
(a) (4 points) Show that V x F = 0.
(b) (4 points) Find a potential f for the vector field F.
(c) (4 points) Let S be a surface in R3 for which the Stokes' Theorem is valid. Use
Stokes' Theorem to calculate the line integral
Jos
F.ds;
as denotes the boundary of S. Explain your answer.
(3) (16 points) Consider
z = uv,
u = x+y,
v=x-y.
(a) (4 points) Express z in the form z = fog where g: R² R² and f: R² →
R.
(b) (4 points) Use the chain rule to calculate Vz = (2, 2). Show all intermediate
steps otherwise no credit.
(c) (4 points) Let S be the surface parametrized by
T(x, y) = (x, y, ƒ (g(x, y))
(x, y) = R².
Give a parametric description of the tangent plane to S at the point p = T(x, y).
(d) (4 points) Calculate the second Taylor polynomial Q(x, y) (i.e. the quadratic
approximation) of F = (fog) at a point (a, b). Verify that
Q(x,y) F(a+x,b+y).
=
(6) (8 points) Change the order of integration and evaluate
(z +4ry)drdy .
So S√ ²
0
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Fundamental Theorem of Calculus 1 | Geometric Idea + Chain Rule Example; Author: Dr. Trefor Bazett;https://www.youtube.com/watch?v=hAfpl8jLFOs;License: Standard YouTube License, CC-BY