正弦定理
a = b sin
θ
/ sinB
I.
MODE 0
2.
÷
5.
x
8.
=
II.*
P1
3.
ENT
6.
ENT
III.
MODE •
1.
ENT
4.
sin
7.
sin
sin
θ
= a sinB / b
I.
MODE 0
2.
÷
5.
ENT 60
8.
sin
-1
II.*
P1
3.
ENT 7
6.
sin
III.
MODE •
1.
ENT 4
4.
x
7.
=