Trigonometric Identities Flashcards
1
Q
Circle
A
x^2+y^2=r^2
2
Q
Sin X
A
y/r
3
Q
Tan X
A
y/x = sin x/cos x
4
Q
Cos^2 X + Sin^2 X
A
1
5
Q
1+Tan^2 X
A
Sec^2 X
6
Q
1+Cot^2 X
A
Csc^2 X
7
Q
Csc X
A
1/csc x
8
Q
Sec X
A
1/cos x
9
Q
Cot X
A
1/tan x
10
Q
Sin X
A
1/csc x
11
Q
Cos X
A
1/sec x
12
Q
Tan X
A
1/cot x
13
Q
Sin(-X)
A
-Sin X
14
Q
Csc(-X)
A
-Csc X
15
Q
Tan(-X)
A
-Tan X
