(1/2009-1)(1/2008-1)(1/2007-1)……(1/3)(2/1)计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 00:38:26
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(1/2009-1)(1/2008-1)(1/2007-1)……(1/3)(2/1)计算
(1/2009-1)(1/2008-1)(1/2007-1)……(1/3)(2/1)计算
(1/2009-1)(1/2008-1)(1/2007-1)……(1/3)(2/1)计算
(1/2009-1)(1/2008-1)(1/2007-1)……(1/3-1)(2/1-1)
=(-2008/2009)×(-2007/2008)×(-2006/2007)×……×(-2/3)×(-1/2)
=2008/2009×2007/2008×2006/2007×……×2/3×1/2
=1/2009
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
简算:(2009+1/2007)*1/2008
计算|1/2009-1/2008|+|1/2008-1/2007|-|1/2009-1/2007|=( )
2008/(2008+2009分之2008)+2010分之1
计算2009*(1-1/2009)*(1-1/2008)*(1-1/2007)*.*(1-1/2)
【(2009+2008*2010)/(2009*2010-1)】*2010
计算1/1*2010+1/2*2009+1/3*2008+...+1/2010*1-2010/2011(1/1*2009+1/2*2008+...+1/2009*1)
1/(1*2010)+1/(2*2009)+...+1/(2010*1)-(2010/2011)*(1/1*2009+1/2*2008+...+1/2009*1)
(1/2009-1)*(1/2008-1)*(1/2007-1)……(1/3-1)*(1/2-1))
计算(1/2010-1)*(1/2009-1)*(1/2008-1)*……*(1/2000-1)
计算(1/2009-1)*(1/2008-1)*(1/2007-1)*……*(1/1000-1)
计算(1/2009-1)*(1/2008-1)*(1/2007-1)*.*(1/1000-1)
(-1×1/2)+(-1/2×1/3)+(-1/3×1/4)+…+(-1/2008×1/2009)
(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1)简算
(2009+2007分之1)*2008分之1
(2009+2007分之1)*2008分之1
(1+2007分之1+2008分之1)×(2007分之1+2008分之1+2009分之1)-(1+2007分之1+2008分之1+2009分之1)×(2007分之1+2008分之1)
(1+2007/1+2008/1)*(2007/1+2008/1+2009/1)-(1+2007/1+2008/1+2009/1)*(2007/1+2008/1)简算过程