300+302+304+306+308+...+3000+3002+3004+3006+3008

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 08:28:35
300+302+304+306+308+...+3000+3002+3004+3006+3008
x)360660b 6b m=== ˀr6IEk/!Ӯ w>ٌtu=FƦ&`%O'<ٱK@@ $ Rejfdjhf_\gu 1YFnm2ݔ<ς4Bc qL49##CCs$'[o

300+302+304+306+308+...+3000+3002+3004+3006+3008
300+302+304+306+308+...+3000+3002+3004+3006+3008

300+302+304+306+308+...+3000+3002+3004+3006+3008
项数是(3008-300)/2=1354
和为 (300+2008)*1354/2=1562516

项数:(3008-300)÷2+1=1355
300+302+304+306+308+...+3000+3002+3004+3006+3008
=(300+3008)X1355÷2
=2241170