1. The problem statement, all variables and given/known data Completely solve this triangle. No calculators please. A=? B=Pi/3 C=? a=(1+sqrt(3)) b=? c=2 2. Relevant equations Cosine law: b^2=a^2c^2-2ac(cos(B)) Sine law: Sin(A)/a=Sin(B)/b 3. The attempt at a solution b^2=-6 You can plug in 1/2 in (cos(B)) right away. Other attemps, dont ask what I did but I ended up finding A=pi/3 and that makes no sense.