(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 09:59:31
(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)计算
x)05720Ԇ3O7~7~SUDE_[|t"}j_`g36ЇiikiǮnRC=S]@~qAb(@;i

(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)计算
(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)计算

(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)计算
(1-1/2008)+(1-1/2008×2)+(1-1/2008×3).+(1-1/2008×2008)
=1×2008-(1/2008)×(1+2+3+...+2008)
=2008-(1/2008)×(2008×2009/2)
=2008-1004.5
=1003.5