Can someone help me find the sum of the first 19 terms of the following sequence?
-11, -8, -5 . . .
final equation is
so answer is
using arithmatic progression
I did calculation mistake(put 14(9) instead of 14(19)) that I realised after posting. I edited it but you being so fast quoted my previous answer which had a mistake
I gave the complex method because it can also be used to find sum to n terms of series like 1+3+6+10 and so on...