Mathematics
Senior High
Resolved

倍角 半角の公式の範囲です。
0<θ<2π
=
でこの方程式を解き方を教えてください

(2) sin 2の ニcosの っvm ラスnnOCてOS@ っつぐ:ぃ2 CoS9 -CoSy6 =の

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