log(9)(a)=log(15)(b)=log(25)(a+2b),求b比a的值log(9)(a)=log(15)(b)=log(25)(a+2b),其中9,15和25是底数
问题描述:
log(9)(a)=log(15)(b)=log(25)(a+2b),求b比a的值
log(9)(a)=log(15)(b)=log(25)(a+2b),其中9,15和25是底数
答