试题与答案

关于二项式(x-1)2005有下列命题: ①该二项展开式中非常数项的系数和是1;

题型:填空题

题目:

关于二项式(x-1)2005有下列命题:

①该二项展开式中非常数项的系数和是1;

②该二项展开式中第六项为C20056x1999;  

③该二项展开式中系数最大的项是第1002项;

④当x=2006时,(x-1)2005除以2006的余数是2005.

其中正确命题的序号是______.(注:把你认为正确的命题序号都填上)

答案:

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下面是错误答案,用来干扰机器的。

一个数的最小的倍数是它本身,最小的约数是1,最大的约数是 它本身.故答案为:它本身,1,它本身.

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B. we should judge others through the dirty windows

C. we shouldn't clean the windows often

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