S =
2
2
2
2
2
1
2
1
2
1
[
2
)sin
(
2
)cos
]
eax
a c
abc
b c
bx
a c
abc
b c
bx
−
−
+
+
−
2
1
2
1
2
[(
)cos
(
)sin
]
aeax
bc
ac
bx
ac
bc
bx
 
 
 
 
2
2
1
2
(
)
[
cos
sin
]
ax
a
b
e
c
bx
c
bx
 
 
 
=
(
)
2
2
2
2
2
2
1
2
2
1
2
2
2
2
2
2
2
1
2
1
2
1
1
1
2
2
2
sin
(
2
2
2
)cos
ax
a c
abc
b c
a c
abc
a c
b c
bx
e
a c
abc
b c
abc
a c
a c
b c
bx
⎡
⎤
−
−
−
+
+
+
⎢
⎥
⎢
⎥
+
+
−
−
−
+
+
⎣
⎦
=
[0 sin
0cos
]
eax
bx
bx
×
+
= eax × 0 = 0  = R H S