sec²θ
1+tg²θ=
sec²θ
cscθ=
1/secθ
secθ=
csc²θ
1/cosθ
cotθ=
1+tan²θ=
1+cot²θ
1
tanθ=
1/tanθ
1/sinθ
cosθ/sinθ
senθ/cosθ
cotθ=
cosθ=
sin²θ+cos²θ=