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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §10.2 Convergence Tests: Positive Series, #54 · Calculus · Series

In Problem 53 use Stirling's formula

$b_{n} = 1/ n^{e}$ , $c_{n} = 1/ e^{n}$

In Problem 53 use Stirling's formula $2 π n n^{n} / e^{n} n! \to 1$ .

This exercise builds on another exercise in its source book, which isn't shown here.

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §10.2 Convergence Tests: Positive Series, #54

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