Mathematics
Senior High
数Iの三角形の形状の問題です！（2）の解き方を教えてください！
1
△ABCにおいて,次の等式が成り立つとき、この三角形はどのよう
な形の三角形か。
(1) asin A = bsin B
(2) acosA+bcos B
=
C cos C
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