Trigonometry Flashcards
1
Q
Pythagoras Theorum
A
c^2 = b^2 + a^2
2
Q
Cosine rule
A
a^2 = b^2 + c^2 -2bc cosA
Cos A = (b^2 + c^2 - a^2)/2bc
3
Q
Sine rule
A
a/Sin A = b/Sin B = c/Sin C
Sin A/a = Sin B/b = Sin C/c
4
Q
Area of scalene triangle
A
1/2ab Sin C
5
Q
SOH
A
Sin = Opposite/Hypotenuse
6
Q
CAH
A
Cos = Adjacent/Hypotenuse
7
Q
TOA
A
Tan = Opposite/Adjacent
