What is the right way to solve a problem like this?
Let $x_n$ a sequence of real numbers such that: $$ \lim_{n \to \infty}(x_n - x_{n+2})=0,$$ So try that: $$ \lim_{n \to \infty}\frac{x_n - x_{n+1}}{n}=0.$$
What is the right way to solve a problem like this?
Let $x_n$ a sequence of real numbers such that: $$ \lim_{n \to \infty}(x_n - x_{n+2})=0,$$ So try that: $$ \lim_{n \to \infty}\frac{x_n - x_{n+1}}{n}=0.$$