1+2````````````````````````````+100000000=?^_^`我这是靠你们呐

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/26 06:22:52
1+2````````````````````````````+100000000=?^_^`我这是靠你们呐
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1+2````````````````````````````+100000000=?^_^`我这是靠你们呐
1+2````````````````````````````+100000000=?
^_^`
我这是靠你们呐

1+2````````````````````````````+100000000=?^_^`我这是靠你们呐
1+2````````````````````````````+100000000
=(1+100000000)*100000000/2
=5000000050000000
这种类似的题目有公式可以用
和=(首项+末项)×项数/2
这里的首项就是1,末项和项数都是100000000

用等差数列:
(1+100000000)×100000000/2
=5000000050000000
累死我啊!

可以这样计算:(1+100000000)*100000000/2=5000000050000000

=(1+100000000)*100000000/2
=5000000050000000