Question

What is the sum of a 52-term arithmetic sequence where the first term is 6 and the last term is 363?

Answer 1

The sum of the arithmetic sequence where the first term is 6 and the last term is 363 is 9594. 

Sum of an arithmetic sequence: Sn=n2(a1+an), where a1 is the first term and an is the last term.

Sigma notation: 52∑k=6=522(6+363)=9594