230
Respuestas
a
los problemas
4. Y
=
c¡e -
2x
+
C2eX / 4
5.
y
=
cJe --
3x
+
C2.xe - 3x
6.
y
=
e(¡·- 2V43)x/'
+
C2 e (¡4+2v'43 )x/4
7. y
=
c¡e 9x
+
C2xe9x
9.
y
=
eX
+
2e 5x
10 .
y
=
e- 2x cos.x
+
2e- 2x
sen
x
11 . Y
=
cos 2x
-
sen
2x
12. Y
=
4xe
x
-
eX
Ejercicios
4.5,
Página 144
v'3
v'3
1.
Y
=
c¡e x
+
C2e - x/2
cos
2x
+
C3e-x/2
sen
2x
2. y
=
c¡e- 2x
+
C2e2x
+
C3 COS
2x
+
c. sen
2x
4.
y
=
C¡ cos
2x
+
C2 sen
2x
+
C3 COS
3x
+
c. sen
3x
5.
Y
=
Cl COS
4x
+
C2 sen
4x
+
C3X
COS
4x
+
c.x
sen
4x
7. Y
=
Cl
+
C2 cos
2x
+
c3 sen
2x
+
c.x
cos
2x
+
C5X
sen
2x
8.
y
=
cle x
+
C2e-x
cos
V2x
+
C3e -x
sen
V2x
9.
y
=
e- 3x
+
C2ex
cos
2x
+
C3ex
sen
2x
+
c.xe x
cos
2x
+
C5xex
sen
2x
7 1
10 .
Y
= -
+
_e- 2x
-
3e- x
2 2
1
12. Y
=
4
cos
x
-
sen
x
-
cos
2x
+
2
sen
2x
1...,222,223,224,225,226,227,228,229,230,231 233,234,235,236,237,238,239,240,241,242,...252