Mathematics
Senior High

数2の三角関数の証明問題です。
ここからの解き方がわかりません。
詳しい解説お願いします🙇‍♂️

cos?0- sin?0 1+2sin0 cos 0 1- tan0 1+ tan0 (佐正) = COSC sla 0 coso
三角関数 証明

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