1) 2+a^2=a^2; -> a=0; -> sqrt(...)=2;
2) 1+a=3a; ->a=0.5; -> .+.+...... =0.5;->=13.5
小學畢業啦......
回複:高中的方法不算。俺就是要讓小的們覺得他們這年紀也可以
本帖於 2009-09-23 04:14:19 時間, 由版主 笑比哭好 編輯
1) 2+a^2=a^2; -> a=0; -> sqrt(...)=2;
2) 1+a=3a; ->a=0.5; -> .+.+...... =0.5;->=13.5
小學畢業啦......
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