Advanced trigonometry Flashcards
1
Q
Cosine Rule
A
a ² = b ² + c ² - 2bc cosA
2
Q
Sine rule
A
a = b = c
SinA SinB SinC
3
Q
Finding an angle using cosine rule
A
CosA = b ² + c ² - a ²
2bc
4
Q
Area of a triangle without height
A
1/2 ab sinC
