The Law of Cosines
The Law of Cosines:
Given a triangle:
The law of cosines are:
A2 = B2 + C2 - 2 BC cos a
B2 = A2 + C2 - 2 AC cos b
C2 = A2 + B2 - 2 AB cos c
Subject:
Trigonometry [1]
Subject X2:
Trigonometry [1]