Question 1140439
.


It was solved and answered long time ago under this link


<A HREF=https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1134805.html>https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1134805.html</A>


https://www.algebra.com/algebra/homework/Sequences-and-series/Sequences-and-series.faq.question.1134805.html