2+4+6+8+---------+1002+4+6+8+-----------+100

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/16 09:16:21
2+4+6+8+---------+1002+4+6+8+-----------+1002+4+6+8+---------+1002+4+6+8+-----------+1002+4+6+8+----

2+4+6+8+---------+1002+4+6+8+-----------+100
2+4+6+8+---------+100
2+4+6+8+-----------+100

2+4+6+8+---------+1002+4+6+8+-----------+100
(2+100)*99/2=5049