计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2-3)要过程

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/20 05:03:09
计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2-3)要过程计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2

计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2-3)要过程
计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2-3)要过程

计算:(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-3)(1/2-3)要过程
=(-2010/2011)(-2009/2010)(-2008/2009)...(-2/3)(-1/2)
=1/2011
希望能帮你忙,懂了请采纳,

这道题?从什么数字开始-3的?只是最后两项-3,还是前三项后就开始-3?

(1/2011-1)(1/2010-1)(1/2009-1)...(1/3-1)(1/2-1)
=(-2010/2011)×(-2009/2010)×(2008/2009)×……×(-2/30ch3(-1/2)
=1/2011