Mathematics
Senior High
（2）の部分がよくわかりません！
(2) △ABMに余弦定理を適用して
4a°+c-6°
2
_が+c°-2α°
2
AM°=c°+a°-2cacosB=c°+a"-
(3) a=BM, b=AC, c=AB だから, 2AM°=AC?+AB°-2BM°
AD2
A02
o(A1
1r?)
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
これです！