Question 1155268
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Just solved under this link


<A HREF=https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1155269.html>https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1155269.html</A>


https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1155269.html



See my &nbsp;( @ikleyn ) &nbsp;solution there.