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#89 Re: Jai Ganesh's Puzzles » Series and Progressions » 2021-03-19 05:15:20
Awesome, I had never even heard of an arithmetico-geometric sequence before. 
#97 Re: Jai Ganesh's Puzzles » Series and Progressions » 2021-03-18 09:26:41
:waving white flag:
I spent hours scribbling with no luck finding proper solution, though it is clear that the sum converges to 2.25.