Given an Infinite Sequence $\left\{ a _ { n } \right\} = a _ { 1 } , a _ { 2 } , a _ { 3 }$

Short Answer

Given an infinite sequence $\left\{ a _ { n } \right\} = a _ { 1 } , a _ { 2 } , a _ { 3 }$ , … the sum of the terms of the sequence is called an
infinite________ . The notation $S _ { n }$ is called the nth ________ ________of the sequence and is called a finite series.