①
off
5
days
o
-
+
by
-
+
't "
C, er t Ger r L ra
y
=
,
7kt 5x tf =D
(x -13 ) ( at 2)
y = -
3 -
2
,
r
,
= -
3 rz = -
2
②
9,2¥ 4a¥ tag o
-
-
-
BX )
"
(x) ea (C, cos Bx +
Cz sin
y
=
-
find a and B ,
B > 0
( D
'
-
4D t 9) y =
O
f ( D ) =D
FLD ) =
DZ -
4 D -19
f (m) =
o
Z
M
-
Lim t 9 =
O
-
41=42-41932
=
m
m
=
4 I 255 i
-
2
m
=
2 tf i
4 =
2 B =
Fs
, ③ 16 y
' '
t 56 y
'
+49
y
=
O
O) 4
yl
'
co ) 2
y
=
=
(4 rt 7) 2=0
4 r t 7 =
0
4r =
-
7
r =
-
7
I
-744 -
7-44
Lt )
'
=
c e +
ate
y ,
"" ""
" 4
7Th
-
-
est
'
Cre
Lt ) c, e
z
t
y Z
=
e
-
-
, ,
e°
°
( o) =
C,
+
c e co ) =
4
y
C ,
= 4
'
lo ) e° Geo Czecho )
GI
c, t
Z
-
y
= -
,
7
C t
Cz 2
-
=
-
,
-
4
-
7 t Cz =
z
Cz = 9
-744 -
7-44
gits
-
4 e +9 -
Le
off
5
days
o
-
+
by
-
+
't "
C, er t Ger r L ra
y
=
,
7kt 5x tf =D
(x -13 ) ( at 2)
y = -
3 -
2
,
r
,
= -
3 rz = -
2
②
9,2¥ 4a¥ tag o
-
-
-
BX )
"
(x) ea (C, cos Bx +
Cz sin
y
=
-
find a and B ,
B > 0
( D
'
-
4D t 9) y =
O
f ( D ) =D
FLD ) =
DZ -
4 D -19
f (m) =
o
Z
M
-
Lim t 9 =
O
-
41=42-41932
=
m
m
=
4 I 255 i
-
2
m
=
2 tf i
4 =
2 B =
Fs
, ③ 16 y
' '
t 56 y
'
+49
y
=
O
O) 4
yl
'
co ) 2
y
=
=
(4 rt 7) 2=0
4 r t 7 =
0
4r =
-
7
r =
-
7
I
-744 -
7-44
Lt )
'
=
c e +
ate
y ,
"" ""
" 4
7Th
-
-
est
'
Cre
Lt ) c, e
z
t
y Z
=
e
-
-
, ,
e°
°
( o) =
C,
+
c e co ) =
4
y
C ,
= 4
'
lo ) e° Geo Czecho )
GI
c, t
Z
-
y
= -
,
7
C t
Cz 2
-
=
-
,
-
4
-
7 t Cz =
z
Cz = 9
-744 -
7-44
gits
-
4 e +9 -
Le
