(2/3)^x(9/8)^x=27/64

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/27 03:12:01

(2/3)^x(9/8)^x=27/64

(2/3*9/8)^x=27/64
(3/4)^x=27/64
x=3