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(1+1/2)(1+1/3)(1+1/4)(1+1/5)……(1+1/2005)(1+1/2006)=?
人气:429 ℃ 时间:2020-04-15 23:10:23
解答
(1+1/2)*(1+1/3)*(1+1/4)*……*(1+1/2005)(1+1/2006)
=3/2*4/3*5/4*……*2006/2005*2007/2006
=2007/2
=1003.5
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