41. Evaluate the line integral over the given curve C. (9x + 3y)ds; r(t) = (t - 9)i + tj, 0 ≤ t ≤ 4. C a. -48 b. 96 c. 420-√2 d.-228√2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
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41. Evaluate the line integral over the given curve C.
(9x + 3y)ds; r(t) = (t - 9)i + tj, 0 ≤ t ≤ 4.
a. -48
b. 96
c. 420√2
d.-228√2
42. Use Green's Theorem and/or a computer algebra system to evaluate
where C is the circle x² + y²=4 with counterclockwise orientation.
a. 40
b. 160
3
a. 4л
b. 2π
c. -87
d. 2π
e. None of these
43. Use Green's Theorem to evaluate the line integral along the positively oriented closed curve C.
2xydx + 5x²dy, where C is the triangle with vertices (0, 0), (2, 5) and (0, 5).
80
3
d. 10
+9)/3 (4) √(+ (di
C.
Copyright Cengage Learning. Powered by Cognero
[x²ydx-xy²dy,
Page 14
Transcribed Image Text:41. Evaluate the line integral over the given curve C. (9x + 3y)ds; r(t) = (t - 9)i + tj, 0 ≤ t ≤ 4. a. -48 b. 96 c. 420√2 d.-228√2 42. Use Green's Theorem and/or a computer algebra system to evaluate where C is the circle x² + y²=4 with counterclockwise orientation. a. 40 b. 160 3 a. 4л b. 2π c. -87 d. 2π e. None of these 43. Use Green's Theorem to evaluate the line integral along the positively oriented closed curve C. 2xydx + 5x²dy, where C is the triangle with vertices (0, 0), (2, 5) and (0, 5). 80 3 d. 10 +9)/3 (4) √(+ (di C. Copyright Cengage Learning. Powered by Cognero [x²ydx-xy²dy, Page 14
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