1 2 3 4........ 1932864
算式 ...
2005-10-29 08:38:44 · 4 個解答 · 發問者 ︴稚气〞軒ㄟ ≧﹏≦ ＃ Jack ＃♂ 1 in 科學 ➔ 數學
1+ 2 +3+ 4........+ 1932864
2005-10-29 08:49:12 · update #1
利用級數和公式:1/2*n(A1+An)=梯形公式 n=項數,A1=首項,An=末項
1/2*1932864(1+1932864)
=966432*1932865
=1867982587680
Ans:1867982587680
2005-10-29 12:43:23 · answer #1 · answered by 宛容 2 · 0⤊ 0⤋
等差級數公差為一
(1+1932864)1932864/2
2005-10-29 09:02:24 · answer #2 · answered by 分米 2 · 0⤊ 0⤋
1234
1932864
--------------
1934098
2005-10-29 08:44:01 · answer #3 · answered by Anonymous · 0⤊ 0⤋
啥?
2005-10-29 08:39:10 · answer #4 · answered by 唉～～呀～～！ 6 · 0⤊ 0⤋