Trig Identities Flashcards
1
Q
tan (x)
A
sin(x)/cos(x)
2
Q
sec(x)
A
1/cos(x)
3
Q
cosec(x)
A
1/sin(x)
4
Q
cot(x)
A
1/tan(x)
5
Q
cos^2+sin^2
A
1
6
Q
sin2(x)
A
2sin(x)cos(x)
7
Q
cos2(x)
A
cos^2(x)-sin^2(x)
8
Q
tan2(x)
A
2tan(x)/1-tan^2(x)
9
Q
sec^2(x)
A
1+tan^2(x)
10
Q
cosec^2(x)
A
1-cot^2(x)
