Respuestas
a
los problemas
239
2.
17
1
1
a)
x(t)
=
-e-'
-
_e-s,
+
-te - '
48
48
4
b)
o . ,
o .
;¿
o . ,
,
,
,
t
Figura 5.30: Gráfica de
x(t)
=
12 e -'
-
-Le-s,
+
lte-'
48
48
4
11
58
3 x(t)
=
(-:3
+
-:3t)e-2'
-
4
cos4t
-
3sen 4t
Figura 5.31: Gráfica'de
x(t)
=
(lf
+
~t)e - 2'
-
4cos4/ -
3 sen~/
1
25
5
4. x(t)
=
e-'(
4"
cos
2t
+
8
sen
2t )
+
2te-'
sen
2t
Figura 5.32: Gráfica de
x(t)
=
e-'
O
cos 2/
+
?f
sen 21 )
+
~le- '
sen 21
1...,231,232,233,234,235,236,237,238,239,240 242,243,244,245,246,247,248,249,250,251,...252