(1/2011-1)(1/2010-1)(1/2009-1)···(1/3-1)(1/2-1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/10 03:29:28
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pa8hуXϡ
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(-1 2010/2011)X2011
2011-1/2×2011-1/3×(2011-1/2×2011)-...-1/2011×(2011-1/2×2011-...-1/2010×2011)
(2012+1/2011)/(2011+1/2012)+(2010+1/2011)/(2011+1/2010)的简便方法
(2010+2009*2011)/(2010*2011-1)
(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1)简算
(1-1/2009+1/2010+1/2011) ×(1/2009+1/2010+1/2011+1/2012)-(1+1/2009+1/2010+1/2011+1/2012)×(1/2009+1/2010+1/2011)=?
(1-1/2009+1/2010+1/2011) ×(1/2009+1/2010+1/2011+1/2012)-(1+1/2009+1/2010+1/2011+1/2012)×(1/2009+1/2010+1/2011)=?
2011/2010X-2010/2011X+2010X=(2010/1+2011/9)X
(-1 2010/2011)X2011简便计算
初中数学: (2010*2011*2012*2013+1)/(2011*2011+2010) -2011*2011
(1/2012-1)*(1/2011-1)*(1/2010-1).*(1/1000-1)
计算:(1/2+1/3+...+1/2011)*(1+1/2+1/3+...+1/2010)-(1+1/2+1/3+...+1/2011)*(1/2+1/3+...+1/2010)
计算(1-1/2-1/3-...-1/2010)*(1/2+1/3+..+1/2011)-(1-1/2-1/3-...-1/2011)*(1/2+1/3+...+1/2010)
计算:(1/2012-1)×(1/2011-1)×(1/2010-1)×(1/2009-1)×...×(1/2011-1)×(1/2000-1)
1/(1*2010)+1/(2*2009)+...+1/(2010*1)-(2010/2011)*(1/1*2009+1/2*2008+...+1/2009*1)
(2009+2008*2010)/(2009*2010-1)+……小升初考题(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1)-(2011+2010*2012)/(2011*2012-1)
(1/2011-1)(1/2010-1)(1/2009-1)……(1/3-1)(1/2-1)
(1*2)/1+(2*3)/1+(3*4)/1+.+2010*2011/1