2
z
3
z
4
z
5
z
6
z
s
i
n
(
z
)
c
o
s
(
z
)
t
a
n
(
z
)
c
o
t
(
z
)
n
1
2
3
4
5
z
l
o
g
(
z
)
s
i
n
h
(
z
)
c
o
s
h
(
z
)
t
a
n
h
(
z
)
c
o
t
h
(
z
)
p
l
o
t
r
a
n
g
e
0
.
5
1
π
2
π
2
π
a
x
e
s
