23423431229求过程原式=-8×4-4×(1/4)-3=-36原式=(1/2)[1-cos(2π/9)+1+cos(8π/9)]+(√3/2)[sin(5π/9)-sin(π/3)]=(1/2)[2-2sin(5π/9)sin(π/3)]+(√3/2)sin(5π/9)-3/2=-1/2-(√3/2)[sin(5π/9)-sin(5π/9)]=-1/22,奇迹暖暖公主级2427攻略很多攻略根本没用得不了S到底怎么过谢谢2-43,奇迹暖暖公主级25剧院经理伊莎私服S搭配攻略头发:个性少女上衣:记