1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+……+1/(x-2010)(x-2011)
=1/(x-2)-1/(x-1)+1/(x-3)-1/(x-2)+1/(x-4)-1/(x-3)+.+1/(x-2011)-1/(x-2010)
=1/(x-2011)-1/(x-1)
=2010/[(x-2011)(x-1)]您确定一定以及肯定是对的?对的如果对我会加分!肯定对的
计算:1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+……+1/(x-2010)(x-2011)
计算:1/(x-1)(x-2)+1/(x-2)(x-3)+1/(x-3)(x-4)+……+1/(x-2010)(x-2011)
数学人气:700 ℃时间:2019-11-04 12:33:19
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