2016-04-07 13:04发布
(a+1)(a-½)
(-⅓)º×(⅓)³-(π-3)º-3˜²+(⅓)˜¹
(a+1)(a-½) =a²-1/2a+a-1/2
=a²+1/2a-1/2
=1x1/27-1-9+1/3
=-10+(1/27+9/27)
=-10+10/27
=-9又17/27
最多设置5个标签!
付费偷看金额在0.1-10元之间
(a+1)(a-½)
=a²-1/2a+a-1/2
=a²+1/2a-1/2
(-⅓)º×(⅓)³-(π-3)º-3˜²+(⅓)˜¹
=1x1/27-1-9+1/3
=-10+(1/27+9/27)
=-10+10/27
=-9又17/27
一周热门 更多>