[問題] 根號已刪文
剛剛寫數學突然想到...
剛剛嘗試著用打的有點亂 我用手寫用拍的好了
以下
http://ppt.cc/jl_7
所謂的根號出來沒有負的又是怎麼回事咧...
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挫敗之後,上好藥
繼續往前跑吧!
http://www.wretch.cc/blog/ab850412
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