设数列{Xn}满足x1=10,lgXn+1=1+lgXn,求通项Xn.

问题描述:

设数列{Xn}满足x1=10,lgXn+1=1+lgXn,求通项Xn.

lgxn=lg(10xn-1)吧.
xn=10xn-1=10^(n-1)x1=10^n