试题要求

数列:[1,2]3,[1,2,3]0,[1,2,3,4]4,[1,2,3,4,5]-1,[1,2,3,4,5,6]5,[1,2,3,4,5,6,7]-2,[1,2,3,4,5,6,7,8]6,···,则[1,2,3,···,100]        

发布时间:2023-11-15
试题答案
答案:A
解析:方法一:数列项数较多,考虑多重数列。交叉来看,等号右边奇数数列为:3,4,5,6,······,是连续自然数列;等号右边偶数数列为:0,-1,-2,······,是公差为-1的等差数列。所求项是原数列  [完整解析请在题库中查看]