Chapter 12.1, Problem 9AYU

The notation $a_1\text{ + }{a}_2\text{ + }{a}_3\text{ + }\cdot \cdot \cdot \text{ + }{a}_n\text{ = }{\displaystyle \underset{k=1}{\overset{n}{\sum }}{a}_k}$ is an example of ______ notation.

To determine

To fill: The notation $a_1+a_2+a_3+\dots \dots \dots +a_n={\displaystyle \sum }_{k=1}^n{a}_k$ is an example of _____ notation.

Answer to Problem 9AYU

The notation $a_1+a_2+a_3+\dots \dots \dots +a_n={\displaystyle \sum }_{k=1}^n{a}_k$ is an example of summation notation.

Explanation of Solution

$a_1+a_2+a_3+\dots \dots \dots +a_n={\displaystyle \sum }_{k=1}^n{a}_k$

${\displaystyle \sum }_{k=1}^n{a}_k$ is called as summation notation.