7
12.4
12.5
12.6
12.7
12.8
12.9
12.10
12.11
12.12
12.13
12.14
12.15
12.16
12.17
12.18
12.19
12.20
12.21
12.25
12.27
12.28
2
1 Chapter cos
sin x d
0
1 cos ix
f (x) =
e d
i
sin sin(/2) ix
e d
f (x) =
1 ei ix
f (x) =
e d
2i
sin cos ix
e d
f (x) =
i2
cos + sin 1 ix
f (x) =
e d
2
(i + 1)ei 1 ix
e d
f (x) =
22
2
i cos a ix
f (x) =
e d
2
a sin a ix
e d
f (x) = 2
i2
1
cos(/2) ix
f (x) =
e d
1 2
cos(/2) ix
1
e d
f (x) =
i
1 2
2
sin sin(/2)
fc (x) =
cos x d
0
2 + cos sin 1
cos x d
fc (x) =
0
2
4
1 cos a
fc (x) =
cos x d
0
2
cos(/2)
2
fc (x) =
cos x d
0
1 2
2 1 cos
fs (x) =
sin x d
0
2 sin cos
sin x d
fs (x) =
0
2
4
a sin a
fs (x) =
sin x d
0
2
2 cos(/2)
fs (x) =
sin x d
0
1 2
22
12.24 (c) gc () =
g () = e /2
2
1 + ei ix
1
e d
(a) f (x) =
2 1 2
2
sin(/2)
(a) fc (x) =
cos x d
0
2 1 cos(/2)
(b) fs (x) =
sin x d
0
4 cos 3 sin
(a) fc (x) =
cos x d
0
sin 3 sin
4
sin x d
(b) fs (x) =
0
12.2 fs (x) =
12.3
37
||
e
2