1
Q
Tanθ=
A
Sinθ/Cosθ
2
Q
Cotθ=
A
Cosθ/Sinθ
3
Q
Sinθ•Cscθ
A
=1
4
Q
Cosθ•Secθ
A
=1
5
Q
Cotθ•Tanθ
A
=1
6
Q
Sin貕Cosθ²
A
=1
7
Q
Tanθ²+1
A
=Secθ²
8
Q
Cotθ²+1
A
=Cscθ²
