Re: Array problem



On Jan 22, 3:20 pm, "G.E. Ivey" <george.i...@xxxxxxxxxxxxx> wrote:
Assuming that {a_n} converges, then you can take the limit of each part of the equation y_n = 2*a_n + a_(n-1).

lim(y_n)= 2 lim(a_n)+ lim(a_{n-1}): y= 2a+ a= 3a.

You cannot assume that {a_n} converges. You have to prove that {a_n}
converges if y_n=2*a_n + a_(n-1) converges.
.