1) 2+a^2=a^2; -> a=0; -> sqrt(...)=2;
2) 1+a=3a; ->a=0.5; -> .+.+...... =0.5;->=13.5
小学毕业啦......
回复:高中的方法不算。俺就是要让小的们觉得他们这年纪也可以
本帖于 2009-09-23 04:14:19 时间, 由版主 笑比哭好 编辑
1) 2+a^2=a^2; -> a=0; -> sqrt(...)=2;
2) 1+a=3a; ->a=0.5; -> .+.+...... =0.5;->=13.5
小学毕业啦......
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