Identities Flashcards
0
Q
Reciprocal of SEC
A
1/COS
1
Q
Reciprocal of COT
A
1/TAN
2
Q
Reciprocal of CSC
A
1/SIN
3
Q
Quotient of TAN
A
SIN/COS
4
Q
Quotient of COT
A
COS/SIN
5
Q
Pythagorean Theorem (COS/SIN)
A
COS^2+SIN^2=1
1-COS^2=SIN^2
1-SIN^2=COS^2
6
Q
Pythagorean (TAN/SEC)
A
TAN^2+1=SEC^2
TAN^2-SEC^2=1
SEC^2-1=TAN^2
7
Q
Pythagorean (CSC/COT)
A
1+COT^2=CSC^2
1-CSC^2=COT^2
CSC^2-COT^2=1
8
Q
-SIN
A
SIN(-)
9
Q
-TAN
A
TAN(-)
10
Q
-COS
A
COS(-)
11
Q
Cos(a+b)
A
CosAcosB-sinAsinB
12
Q
Cos(A-B)
A
CosAcosB+SinAsinB
13
Q
Sin(A+B)
A
SinAcosB+CosAsinB
14
Q
Cos2Ø
A
Cos^2ø-sin^2ø
