Trig Identities Flashcards
1
Q
(Sin^2)X + (Cos^2)X = ___
A
1
2
Q
(Cos^2)X = ___
A
1-(Sin^2)X
3
Q
(Sin^2)X = ___
A
1 - (Cos^2)X
4
Q
(Tan^2)X + 1 = ___
A
(Sec^2)X
5
Q
(Tan^2)X = ___
A
(Sec^2)X - 1
6
Q
(Sec^2)X - (Tan^2)X = ___
A
1
7
Q
1 + (Cot^2)X = ___
A
(Csc^2)X
8
Q
(Cot^2)X = ___
A
(Csc^2)X - 1
9
Q
(Csc^2)X - (Cot^2)X = ___
A
1
10
Q
Sin (A + B) = ___
A
SinAcosB + CosAsinB
11
Q
Sin(A - B) = ___
A
SinAcosB - CosAsinB
12
Q
Cos(A + B) = ___
A
CosAcosB - SinASinB
13
Q
Cos(A - B) = ___
A
CosAcosB + SinAsinB
14
Q
Sin2X = ___
A
2SinXCosX
15
Q
(#1) Cos2X
A
(Cos^2)X - (Sin^2)X
16
Q
(#2) Cos2X
A
2(Cos^2)X - 1
17
Q
(#3) Cos2X
A
1 - 2(Sin^2)X
