Trig IDs Flashcards
1
Q
sin^2 + cos^2 =
A
1
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
Tan(a+b)=
A
Tan(a)+tan(b) / 1-tan(a)tan(b)
5
Q
Sin^2(a) =
A
1/2(1-cos(2a))
6
Q
Cosh(a+b)=
A
Cosh(a)cosh(b)+sinh(a)sinh(a)
7
Q
Sinh(a+b)=
A
Sinh(a)cosh(b)+sinh(b)cosh(a)
8
Q
Cosh^2(a)-sinh^2(a)=
A
1
