ページ1:

30°
45°
600
Sin
2
12
2
厉
2
109
m/n
仄
~~ ~~
0
D°
90°
0
0
2
-
tan
what
1
厉
0
X
180°
0
1
270°
|-
0

ページ2:

2
o
sin O + cos ² 0 = 1
tang = smo
6040
Anel
sin
cos
tam
[r, O] = (rwoso, rsino)
y
X

ページ3:

2R =
2
—-— absinc = = = bcsinA = 1 ½ acsin B
a
Sin A
b
81415
=
n
sin
a²= b²+c² = 2bcsing,
4 = 1½ = (a+b+c)
cos A
D= 5 (s-a) (s-b) (4-6)
b² + c² a
zbc

ページ4:

B
2
-C AL² + BD² = 2 ( AB² + CD²)
C
ma
C
2
ma = = = √ zb²+zc²-a²
V =
号
30
A
20
#
B
D
AB = AL = BD = CD

ページ5:

1819
sin 2d = 2 sind cosa
2
cos2d = cos² d-sin²d
半角
= 1-25 in² α = 2005² α-1
fan 2d =
2
Sinza
2 tan d
1-tan²α
1-cosa
2
2
1+cord
=
2
cosa a
2
tan² α = 1-cosα
2
I+cos d