Problem with Solution - Multivariable Calculus | MATH 2210, Assignments of Mathematics

Material Type: Assignment; Professor: Bornholdt; Class: MULTIVARI CALCULUS (QI)(H); Subject: Mathematics; University: Utah State University; Term: Unknown 1989;

Typology: Assignments

Pre 2010

Uploaded on 07/30/2009

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Math 2210 12.2 Problem 29
We may evaluate
1
0
1
0
35
dxdyeyx
xy
by integrating by parts (many, many times):
When integrating with respect to y, we choose
3
yu
so that
dyydu
2
3
and
reversing the chain rule for dv with respect to y gives
)(
15 xy
exxv
. We see that
integration by parts in this case reduces the powers of both x and y. Thus, we have
5721
0)600000(3)60602771(
36060277
2433660277
182431836277
1218123618157
612943663
6663
6663
663
663
63
3
01
1
0
2234
1
0
2234
1
0
2234
1
0
22234
1
0
232234
1
0
234
1
0
234
1
0
1
0
22334
1
0
1
0
222334
1
0
1
0
32334
1
0
1
0
2434
1
0
1
0
35
e
ee
xexxxx
dxexexxxx
dxexxexxxx
dxexxxexxxx
dxexxxxexxxx
dxxexxxx
dxxxeexexex
dxxeyexeyxeyx
dxdyexyexeyxeyx
dxdyyexeyxeyx
dxdyeyxeyxdxdyeyx
x
xx
xx
xx
xx
x
xxxx
xyxyxyxy
xyxyxyxy
xyxyxy
xyxyxy
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Math 2210 12.2 Problem 29

We may evaluate 

1 0 1 0

x^5 y^3 exy^ dydx

by integrating by parts ( many, many times ):

When integrating with respect to y, we choose u^ ^^ y^3 so that du^ ^3 y^2 dy and

reversing the chain rule for dv with respect to y gives (^ )

v  x^5 x ^1 exy

. We see that

integration by parts in this case reduces the powers of both x and y. Thus, we have

1 0 1 0 4 3 2 2 1 0 4 3 2 2 1 0 4 3 2 2 1 0 4 3 2 2 2 1 0 4 3 2 2 3 2 1 0 4 3 2 1 0 4 3 2 1 0 1 0 4 3 3 2 2 1 0 1 0 4 3 3 2 2 2 1 0 1 0 4 3 3 2 3 1 0 1 0 4 3 4 2 1 0 1 0 5 3  

e e e x x x x e x x x x x e x e dx x x x x e x x e dx x x x x e x x x e dx x x x xe x x x x e dx x x x xe x dx xe xe xe xe x dx xye xye xye xe dx xye xye xye xe dy dx xye xye xye dy dx xye dydx xye xye dy dx x x x x x x x x x x x x x x xy xy xy xy xy xy xy xy xy xy xy xy xy xy

Thank you for reading. (Who needs a computer for this?)