计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)

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计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)
x){nuӭ4 Mu 5!,8rb@&H\v6K[ ]JFM06k|԰ 7 B5B,/.H̳9H

计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)
计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)

计算:(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)
(1/2015-1)(1/2014-1)(1/2013-1)...(1/3-1)(1/2-1)
=(-2014/2015)(-2013/2014)(-2012/2013)…(-2/3)(-1/2)
=1/2015