Mathematics
Senior High
Solved
これの計算の仕方を詳しく教えてほしいです！
余弦定理により
(3-√3)2+(3/2) 2-(2√3) 2
2(3-3).3√2
cos B =
6(3-√3)
=
6√√2(3-√√3) √√√2
1
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ありがとうございます！