Compound and double angle formula Flashcards
1
Q
Sin(A+B)
A
SinA.CosB+SinB.CosA
2
Q
Sin(A-B)
A
SinA.CosB-SinB.CosA
3
Q
Cos(A+B)
A
CosA.CosB-SinA.SinB
4
Q
Cos(A-B)
A
CosA.CosB+SinA.sinB
5
Q
Tan(A+B)
A
(TanA+TanB)/(1-TanA.TanB)
6
Q
Tan(A-B)
A
(TanA-TanB)/(1+TanA.TanB)
7
Q
Sin(2A)
A
2sinA.CosA
8
Q
Cos(2A)
A
1-2sin*2
9
Q
Tan(2A)
A
(2TanA)/(1-Tan*2(A))
10
Q
Sin*2(A)
A
1-Cos*2(A)
11
Q
Cos*2(A)
A
1-Sin*2(A)
12
Q
Rsin(x+a)
A
aSinx+bCosx
13
Q
Rsin(x-a)
A
aSinx-bCosx
14
Q
Rcos(x-a)
A
aCosx+bSinx
15
Q
Rcos(x+a)
A
aCosx-bSinx
