(1/2010-1)*(1/2009-1)*(1/2008-1)*…(1/1001-1)*(1/1000-1)=?1/1*2+1/2*3+1/3*4+…+1/20*21=?1/1*3+1/3*5+1/5*7+…+1/17*19=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/26 04:51:00
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1/2009*2010+1/2010+1/2011
(2011+1/2009)×1/2010
2009*2010-1分之2009+2008+2010
2009×2009+2008分之2009×2010-1
2009÷2009 2009/2010+1/2011
(-1)^2010+(-4)^2010*(-1/4)^2009
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1)+(2011+2010*201
根号1+2009²+2009²/2010²-1/2010
2009×2010-1分之2009+2008×2010 ×2010
【(2009+2008*2010)/(2009*2010-1)】*2010
2010+2009×2011/2010×2011-1—2009+2008×2010/2009×2010-1
(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1)简算
计算:|1/2009-1/2008|-|1/2010-1/2008|+|1/2010-1/2009|
计算|2009/1-2010/1|+|2010/1-2011/1|+|2011/1-2009/1|
|1/2010-1/2009|+|1/2011-1/2010|-|1/2011-1/2009|=多少
计算 |1/2011-1/2010|+|1/2010-1/2009|+|1/2009-1/2008|+...+|1/3-1/2|+|1/2-1|计算 |1/2011-1/2010|+|1/2010-1/2009|+|1/2009-1/2008|+...+|1/3-1/2|+|1/2-1|
(-7)^2010×(1/7)^2011×(-1)^2009