﹙－y﹚²·yⁿ－¹

来源：学生作业帮助网编辑：六六作业网时间：2024/12/29 07:33:13

﹙－y﹚²·yⁿ－¹﹙－y﹚²·yⁿ－¹﹙－y﹚²·yⁿ－¹﹙－y﹚²·yⁿ－&#

﹙－y﹚²·yⁿ－¹
﹙－y﹚²·yⁿ－¹

﹙－y﹚²·yⁿ－¹
﹙－y﹚²·yⁿ－¹
=y²·yⁿ－¹
=yⁿ+¹