|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/13 23:48:24
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
=1/2008-1/2009+1/2007-1/2008+1/2006-1/2007+1/2009-1/2006
=0
1/2009+2/2009+3/2009+.+2008/2009=?
2010*2009-2009*2008+2008*2007-2007*2006.+2*1
1+2+3+...+2008+2009+2008+...+3+2+1=
【9又2008/2009-(8-1/2009)】/2 *1/2
1/1*2+1/2*3+...+1/2008*2009=
2009*(1-1/2009)*(1-1/2008)*(1-1/2007)*.*(1-1/2)
2008×2009-1分之2008+2009×2007
2008+2009×2007/2008×2009-1
2008+2007+2009/2008*2009-1
2008+2009*2007/2008*2009-1
2008*2009-1与2008^-2008*2009+2009^的大小2008*2009-1与2008^-2008*2009+2009^
2010!+2009!+2008!+.+2!+1!=
2009×2009+2008分之2009×2010-1
1/2009+2/2009+3/2009+.+2008/2009=?1/2+1/4+1/8+1/16+.+1/1024=?
(1/2+1/3.+1/2009)*(1+1/2+1/3..+1/2008)-(1+1/2+1/3..+1/2009)*(1/2+1/3..+1/2008)
(1/2010-1)*(1/2009-1)*(1/2008-1)*...*(1/3-1)*(1/2-1)尽快.
计算(1/2008-1/2009)+(1/2007-1/2008)+.+(1-1/2)
初中绝对值|1/2010-1/2009|+|1/2009-1/2008|+...|1/2-1|