Evaluating a Line Integral of a Vector Field In Exercises 47 and 48, evaluate ∫ C F · d r for each curve. Discuss the orientation of the curve and its effect on the value of the integral. F ( x , y ) = x 2 i + x y j (a) C 1 : r 1 ( t ) = 2 t i + ( t − 1 ) j, 1 ≤ t ≤ 3 (b) C 2 : r 2 ( t ) = 2 ( 3 − t ) i + ( 2 − t ) j , 0 ≤ t ≤ 2
Evaluating a Line Integral of a Vector Field In Exercises 47 and 48, evaluate ∫ C F · d r for each curve. Discuss the orientation of the curve and its effect on the value of the integral. F ( x , y ) = x 2 i + x y j (a) C 1 : r 1 ( t ) = 2 t i + ( t − 1 ) j, 1 ≤ t ≤ 3 (b) C 2 : r 2 ( t ) = 2 ( 3 − t ) i + ( 2 − t ) j , 0 ≤ t ≤ 2
Solution Summary: The author explains that both path joins the two points (2,0 to 6,2), but their integrals are negative of each other because they are different.
Evaluating a Line Integral of a Vector Field In Exercises 47 and 48, evaluate
∫
C
F
·
d
r
for each curve. Discuss the orientation of the curve and its effect on the value of the integral.
F
(
x
,
y
)
=
x
2
i
+
x
y
j
(a)
C
1
:
r
1
(
t
)
=
2
t
i
+
(
t
−
1
)
j,
1
≤
t
≤
3
(b)
C
2
:
r
2
(
t
)
=
2
(
3
−
t
)
i
+
(
2
−
t
)
j
,
0
≤
t
≤
2
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
2
Graph of h
6. The graph of the function h is given in the xy-plane. Which of the following statements is correct?
, the graph of h is increasing at an increasing rate.
(A) For
(B) For
(C) For
苏|4 K|4
π
π
, the graph of h is increasing at a decreasing rate.
2
0 and b>1
(B) a>0 and 01
(D) a<0 and 0
3.
Consider the sequences of functions fn: [-T, π] → R,
sin(n²x)
n(2)
n
(i) Find a function f : [-T, π] R such that fnf pointwise as
n∞. Further, show that f uniformly on [-T,π] as n→ ∞.
[20 Marks]
(ii) Does the sequence of derivatives f(x) has a pointwise limit on [-7,π]?
Justify your answer.
[10 Marks]
Good Day,
Please assist with the following.
Regards,
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