WOLFRAM
|
DEMONSTRATIONS PROJECT
Dissection Proof of the Addition Formula for Sines
α
1
.
2
5
6
6
4
β
0
.
5
2
3
5
9
9
t
r
a
n
s
l
a
t
e
s
h
o
w
t
i
p
T
h
i
s
D
e
m
o
n
s
t
r
a
t
i
o
n
s
h
o
w
s
a
d
i
s
s
e
c
t
i
o
n
p
r
o
o
f
o
f
t
h
e
a
d
d
i
t
i
o
n
f
o
r
m
u
l
a
f
o
r
s
i
n
e
s
,
s
i
n
(
α
+
β
)
=
s
i
n
(
α
)
c
o
s
(
β
)
+
c
o
s
(
α
)
s
i
n
(
β
)
.
