How do I show that if $\displaystyle \sum \frac{x_n}{x_1 + x_2 + \dots + x_n}$ converges then $\displaystyle \sum x_n$ converges.
I was able to prove it the other way around, but I'm stuck for this one.
2026-03-31 09:40:17.1774950017
$\sum \frac{x_n}{x_1 + x_2 + \dots + x_n}$ convergent implies $\sum x_n$ convergent
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