AP precalculus equations Flashcards
1
Q
Sin(A+B)
A
Sin(A)Cos(B)+Sin(B)Cos(A)
2
Q
Sin(A-B)
A
Sin(A)Cos(B)-Sin(B)Cos(A)
3
Q
Cos(A+B)
A
Cos(A)Cos(B)-Sin(A)Sin(B)
4
Q
Cos(A-B)
A
Cos(A)Cos(B)+Sin(A)Sin(B)
5
Q
X
A
rCosθ
6
Q
Y
A
rSinθ
7
Q
X²+Y²
A
r²
8
Q
Tanθ
A
y/x
9
Q
Sin²x+Cos²x
A
1
10
Q
Tan²x+1
A
Sec²x
11
Q
Cot²x+1
A
Csc²x
12
Q
Sin(2θ)
A
2SinθCosθ
13
Q
Cos(2θ)
A
Cos²θ-Sin²θ
2Cos²x-1
1-2sin²x
