Mathematics
Senior High
Solved
途中計算を詳しく教えていただきたいです!
紙に書いてくださるとありがたいです!
cos B=
(√√6)²+(1+√3)2-22
2√√6 (1+√3)
√√3 (1+√3)
√√6 (1+√3) 2
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