WOLFRAM
|
DEMONSTRATIONS PROJECT
Squares of Sine and Cosine
α
0
.
5
2
3
5
9
9
T
h
i
s
D
e
m
o
n
s
t
r
a
t
i
o
n
s
h
o
w
s
f
o
r
m
u
l
a
s
f
o
r
t
h
e
s
q
u
a
r
e
o
f
s
i
n
e
a
n
d
c
o
s
i
n
e
(
w
h
i
c
h
a
r
e
a
l
s
o
k
n
o
w
n
a
s
h
a
l
f
-
a
n
g
l
e
f
o
r
m
u
l
a
s
)
:
2
2
s
i
n
(
α
)
=
1
-
c
o
s
(
2
α
)
,
2
2
c
o
s
(
α
)
=
1
+
c
o
s
(
2
α
)
.
