Find the limit problem LIM (1 / (1 + x) + 1 / (1 + x) ^ 2 + 1 / (1 + x) ^ 3 +. 1 / (1 + x) ^ n) when n tends to infinity, what is the limit of the expression? It's better to be able to give the process of solving the problem

Find the limit problem LIM (1 / (1 + x) + 1 / (1 + x) ^ 2 + 1 / (1 + x) ^ 3 +. 1 / (1 + x) ^ n) when n tends to infinity, what is the limit of the expression? It's better to be able to give the process of solving the problem

Common ratio of sequence {1 / (1 + x) ^ n} q = 1 / (1 + x)
When | Q | 1, x > 0 or X ∞) (1 / (1 + x) + 1 / (1 + x) ^ 2 + 1 / (1 + x) ^ 3 +. 1 / (1 + x) ^ n)
=lim(n-->∞)1/(1+x)* [1-1/(1+x)^n]/[1-1/(1+x)]
=[1/(1+x)]/[1-1/(1+x)]=(1+x)/x=1/x+1
When - 2 ≤ x