True or False? Line integral ∫ c f ( x , y ) d s is equal to a definite integral if C is a smooth curve defined on [ a , b ] and if function f is continuous on some region that contains curve C.
True or False? Line integral ∫ c f ( x , y ) d s is equal to a definite integral if C is a smooth curve defined on [ a , b ] and if function f is continuous on some region that contains curve C.
True or False? Line integral
∫
c
f
(
x
,
y
)
d
s
is equal
to a definite integral if C is a smooth curve defined on
[a, b] and if function f is continuous on some region that contains curve C.
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.
Let the curve C be the line segment from (0, 0) to (3, 1).
Let F = ⟨2x-y, 4y-x⟩ Calculate the integral
∫c F· dr = ∫c (2x-y)dx + (4y-x)dy
in two different ways:(a) Parameterize the curve C and compute the integral directly.
(b) Use the Fundamental Theorem of Line Integrals.
Evaluate
fot F. dr using the Fundamental Theorem of Line Integrals. Use a computer algebra system to verify your results.
JC
1 [8(4x + 5y)i + 10(4x + 5y)j] · dr
C: smooth curve from (-5, 4) to (3, 2)
X
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Let C be the closed, piecewise smooth curve formed by traveling in straight lines between the points (-3, 1), (-3, -2),
(2, –1), (2, 4), and back to (-3, 1), in that order. Use Green's theorem to evaluate the following integral.
(2xy) dx + (xy²) dy
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