I
n
[
]
:
=
π
∫
0
(
1
+
t
)
D
i
r
a
c
D
e
l
t
a
[
C
o
s
[
2
t
]
]
t
O
u
t
[
]
=
3
2
+
1
2
π
+
1
6
π
+
1
1
0
π