ValueError: math domain error
My code:
from math import (pi, acos) def checkio(a, b, c): if a<b+c: alpha=round(math.acos((b**2+c**2-a**2)/2*b*c)*180/math.pi) betta=round(math.acos((a**2+c**2-b**2)/2*a*c)*180/math.pi) gamma=180-(alpha-betta) return sorted(list(alpha,betta,gamma)) else: return [0, 0, 0]
what is wrong with the import?