1,-1,3,-2,9-4()()找规律
问题描述:
1,-1,3,-2,9-4()()找规律
答
填11,-8.规律如下,奇数位上是3的倍数,即3'n-1,偶数位是-1的倍数打错字了,填27,-8,规律正确
1,-1,3,-2,9-4()()找规律
填11,-8.规律如下,奇数位上是3的倍数,即3'n-1,偶数位是-1的倍数打错字了,填27,-8,规律正确