快考了！数列题目求助！麻烦大家乐！

sdcar2010

x(n+1)= 2x(n) – 1

So x(n+1) -1 = 2*(x(n) -1)

So x(n+1) - x(n) = x(n) -1 =2*(x(n-1) - 1) = (2^2)*(x(n-2) - 1) = (2^(n-1))*(x1-1) = 2^n