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32
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x
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x
y
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7
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+=
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x
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1
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n
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x
y
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+=
′
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± I5 2
p±sZ? ￥Y3,
yxyy
y
y
sin2sincos
cos
=
′
± I5 23s
y
yxyy
dy
dx
cos
sin2sincos?
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(),2sintan yxy
dy
dx
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[ ]
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+?=
Cdyeyex
yy coslncosln
2sin
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∫
Cdy
y
yy
y
cos
cossin2
cos [ ]
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Ba p/

QZ?￥Y3
a 0)(
22
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y
x
edxe
y
x
y
x

=a p/

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0
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 1
1
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y 
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a
3
1

++
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yx
y 
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22
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a
Cyex
y
x
=+ 2

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322
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22

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x
y
+++?=
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2
1
1
2
arctan
22

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2
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x
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2
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xy 
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3
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x
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x
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1
+
=
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dy

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22
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′
xxxyxyy 
a
x
y
xyxdx
dy
=
)(sin
1
2

Ba X?±sZ? )(xgyy =+
′

?
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=
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10,2
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x
x
xg
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O uW ),0[ ∞+
@

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x
eCxy
sin
)(
+= 
a Cyyx +=
2
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a
23
2
1
yCyx += 
=aa 15sin
cos
=+
x
exy  
a
1
1
33
2
2
=
x
exxy 
?a )1(
0
2
2
1
2
1
t
m
k
e
k
mk
t
k
k
v
= 
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a )
3
2
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3
2
3
2
2
+?= xxC
y
x

?aa Cxyx +?=? 2)(
2

a
Cx
xy
+
=
1
sin1 
a Cxxyxy +=? 4)2sin(2 
Ba
>?
≤≤?
=?
1,)1(2
10,)1(2
)(
xee
xe
xyy
x
x