Trigonometry Flashcards
1
Q
What is the calculation for the Sine Rule?
A
a b c
——— = ——— = ———
SinA SinB SinC
2
Q
What is the calculation for the Cosine Rule? (Angle)
A
Cos A = b2+c2-a2
—————
2bc
3
Q
What is the calculation for the Cosine Rule? (Length)
A
a2 = b2 + c2 - 2bc cos A
4
Q
What is the calculation for the gradient of a line?
A
m = y2 - y1
———
x1 - x2
5
Q
What is the calculation for any straight line?
A
y = mx + c
