Double integrals Evaluate the following integrals using a change of variables. Sketch the original and new regions of integration . R and S . 78. ∬ R ( y 2 + x y − 2 x 2 ) d A ; R is the region bounded by the lines y = x , y = x – 3, y = –2 x + 3, and y = –2 x – 3.
Double integrals Evaluate the following integrals using a change of variables. Sketch the original and new regions of integration . R and S . 78. ∬ R ( y 2 + x y − 2 x 2 ) d A ; R is the region bounded by the lines y = x , y = x – 3, y = –2 x + 3, and y = –2 x – 3.
Solution Summary: The author evaluates the value of the integral and sketches the original and new region.
Double integralsEvaluate the following integrals using a change of variables. Sketch the original and new regions of integration. R and S.
78.
∬
R
(
y
2
+
x
y
−
2
x
2
)
d
A
;
R is the region bounded by the lines y = x, y = x – 3, y = –2x + 3, and y = –2x – 3.
With differentiation, one of the major concepts of calculus. Integration involves the calculation of an integral, which is useful to find many quantities such as areas, volumes, and displacement.
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 13 Solutions
Student Solutions Manual, Single Variable for Calculus: Early Transcendentals
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