[請問] 請問這個數學題已回收
(這樣才對 剛剛打錯了)
請問各位神人版友
這題數學 1+2+3+ +(2n-1)=n^
請問該如何計算該如何證明?
感謝解答!!
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※ 編輯: qwe520 (36.231.240.110), 07/29/2014 16:21:49
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