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The sum of the first n terms of a certain sequence an is given by Sn = n(n + 19). Show that this is an arithmetic progre
Posted: Thu Apr 28, 2022 6:27 am
by answerhappygod
- The Sum Of The First N Terms Of A Certain Sequence An Is Given By Sn N N 19 Show That This Is An Arithmetic Progre 1 (25.32 KiB) Viewed 20 times
The sum of the first n terms of a certain sequence an is given by Sn = n(n + 19). Show that this is an arithmetic progression. Find the value of the initial term and the common difference. Also find the sum of the first 3n terms. Then find the smallest value of n for which the sum 23" an is greater than 73.5