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Convergence of a Series with Factorials Using the Ratio Test

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Determine whether \( \sum_{n=0}^{\infty} \frac{n!}{(2n)!} \) converges.
calculus-iiseriesconvergence-testsratio-testfactorialsinfinite-serieslimitssequence-limitsabsolute-convergencepositive-termsalgebraic-simplificationasymptotic-behaviorevaluate-limitdetermine-convergence

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What this problem tests

Tests the ability to correctly set up the Ratio Test, simplify expressions with factorials, and evaluate limits of rational functions at infinity.

This is a standard problem in a Calculus II course when learning about convergence tests for infinite series.