trig identities Flashcards
1
Q
cos^2θ + sin^2θ =
A
1
2
Q
1-sin^2θ =
A
cos^2θ
3
Q
1-cos^2θ=
A
sin^2θ
4
Q
tanθ=
A
sinθ/cosθ
5
Q
sec^2θ =
A
1 + tan^2θ
6
Q
cosec^2θ=
A
1 + cot^2θ
7
Q
secθ =
A
1/cosθ
8
Q
cosecθ=
A
1/sinθ
9
Q
cotθ=
A
1/tanθ
cosθ/sinθ
