观察下面三行数:1:-3,9,-27,81,-243;2:0,12,-24,84,-240;3:1,-3,9,-27,81.写出各行第8

问题描述:

观察下面三行数:1:-3,9,-27,81,-243;2:0,12,-24,84,-240;3:1,-3,9,-27,81.写出各行第8

第一行:6561 第二行:6564 第三行:-2187