• anonymous
Topic: $$\textbf{Calculus 2}$$ Q: Radius of convergence and interval of convergence for: $$\large \sum_{n=1}^{\infty} n!(2x-1)^n$$ Ratio Test for Divergence $$\lim_{n \rightarrow \infty} \left| \frac{a_{n+1}}{a_n} \right|$$ = L if ( L < 1 ) then {convergent} if( L > 1 ) then {"divergent"} else {"inconclusive"}
Mathematics

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