Marin
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hi there!
I want to show the convergence of the following series as N goes to infty.
\displaystyle{\sum_{k=0}^N}\frac{x^k}{k!}-\frac{n!x_n^k}{k!(n-k)!n^k},
x_n is a sequence such that. lim(n->oo)x_n = x, but I´m interested in big N
I ´m not allowed to use the limit definition of exp(x)
What I want to do (but am not sure if it´s correct) is to separate the sum before taking the limit N->oo and after that take it, so that the first term converges to exp(x) an the convergence of the second term I can show with the ratio test
I want to show the convergence of the following series as N goes to infty.
\displaystyle{\sum_{k=0}^N}\frac{x^k}{k!}-\frac{n!x_n^k}{k!(n-k)!n^k},
x_n is a sequence such that. lim(n->oo)x_n = x, but I´m interested in big N
I ´m not allowed to use the limit definition of exp(x)
What I want to do (but am not sure if it´s correct) is to separate the sum before taking the limit N->oo and after that take it, so that the first term converges to exp(x) an the convergence of the second term I can show with the ratio test