math help
2006-12-21 8:14 pm
1+2+3+999,999,999,997+999,999,999,999+999,999,999,999+1,000,000,000,000=?
回答 (3)
2006-12-21 8:28 pm
✔ 最佳答案
1+2+3+999,999,999,997+999,999,999,999+999,999,999,999+1,000,000,000,000可以拆為
(3+999,999,999,997)+(1+999,999,999,999)+1+(1+999,999,999,999)+1,000,000,000,000
=1,000,000,000,000+1,000,000,000,000+1,000,000,000,000+1,000,000,000,000+1
=4,000,000,000,000+1
=4,000,000,000,001
2006-12-21 12:29:17 補充：
2拆為1 1
2006-12-22 1:30 am
1+2+3......+999,999,999,999,999,999+999,999,999,999,999,999+1,000,000,000,000=?
=(1+1000000000000)1000000000000000/2+999999999999
=(1000000000000001)500000000000000+999999999999
=500000000000000500000000000000+999999999999
=500000000000000500999999999999
不明的話有例:
1+2+3+4......+10+11+12+13=?
=(1+13)13/2
=14*6.5
=91
=(1+1000000000000)1000000000000000/2+999999999999
=(1000000000000001)500000000000000+999999999999
=500000000000000500000000000000+999999999999
=500000000000000500999999999999
不明的話有例:
1+2+3+4......+10+11+12+13=?
=(1+13)13/2
=14*6.5
=91
2006-12-21 9:01 pm
1,000,000,000,000*(100,000,000,000+1)/2
收錄日期: 2021-04-18 20:15:20
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061221000051KK01101