Line integrals Evaluate the following line integrals. 8 . ∫ C ( x 2 − 2 x y + y 2 ) d s ; C is the upper half of the circle r ( t ) = 〈5 cos t, 5 sin t 〉, for 0 ≤ t ≤ π .
Line integrals Evaluate the following line integrals. 8 . ∫ C ( x 2 − 2 x y + y 2 ) d s ; C is the upper half of the circle r ( t ) = 〈5 cos t, 5 sin t 〉, for 0 ≤ t ≤ π .
Line integralsEvaluate the following line integrals.
8.
∫
C
(
x
2
−
2
x
y
+
y
2
)
d
s
;
C is the upper half of the circle r(t) = 〈5 cos t, 5 sin t〉, for 0 ≤ t ≤ π.
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.
In each of Problems 1 through 4, draw a direction field for the given differential equation. Based on the direction field, determine the behavior of y as t → ∞. If this behavior depends on the initial value of y at t = 0, describe the dependency.1. y′ = 3 − 2y
B 2-
The figure gives four points and some
corresponding rays in the xy-plane. Which of
the following is true?
A
B
Angle COB is in standard
position with initial ray OB
and terminal ray OC.
Angle COB is in standard
position with initial ray OC
and terminal ray OB.
C
Angle DOB is in standard
position with initial ray OB
and terminal ray OD.
D
Angle DOB is in standard
position with initial ray OD
and terminal ray OB.
temperature in degrees Fahrenheit, n hours since midnight.
5. The temperature was recorded at several times during the day. Function T gives the
Here is a graph for this function.
To 29uis
a. Describe the overall trend of temperature throughout the day.
temperature (Fahrenheit)
40
50
50
60
60
70
5
10 15 20 25
time of day
b. Based on the graph, did the temperature change more quickly between 10:00
a.m. and noon, or between 8:00 p.m. and 10:00 p.m.? Explain how you know.
(From Unit 4, Lesson 7.)
6. Explain why this graph does not represent a function.
(From Unit 4, Lesson 8.)
Chapter 17 Solutions
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