计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/27 13:05:23
![计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!](/uploads/image/z/1124357-5-7.jpg?t=%E8%AE%A1%E7%AE%97%3A%28m%2B3m%2B5m%2B.%2B2009m%29-%282m%2B4m%2B6m%2B.%2B2008%EF%BC%89%E5%B8%AE%E5%B8%AE%E5%BF%99%E5%91%80%21)
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008m)
= (m - 2m) + (3m - 4m) + ...+ (2007m - 2008m) + 2009m
= (-m)×1004 + 2009m
= 1005m
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2008m)
计算:(m+3m+5m+...+2009m)-(2m+4m+6m+...+2010m)
计算(m+3m+5m+7m+.+2009m)-(2m+4m+6m+.+2008m)
计算(m+3m+5m……+2009m)—(2m+4m+6m+2008m)=
计算(m+3m+5m+.+2009m)-(2m+4m+6m+.+2010m)=多少
计算:(m+3m+5m+.+2009m)-(2m+4m+6m+.+2008)帮帮忙呀!
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