Arithmetic Series 11.2

Vocabulary series: the sum of the indicated terms in a sequence arithmetic series: the sum of an arithmetic sequence

Finding an Arithmetic Series or Method 1Method 2

Example 2-1a Find the sum of the first 20 even numbers, beginning with 2. Ex 1 Method 1 Method 2

Example 2-1a Find the sum of the first 15 numbers, beginning with 1. Ex 2

Example 2-1a Find the sum of the arithmetic series: Ex 3

Example 2-1a Find the first four terms of the arithmetic series with the following characteristics: Ex 4

Example 2-1a Find the sum of the arithmetic series: Ex 5

Vocabulary sigma notation: more concise notation for a series index of summation: the variable in sigma notation

Example 2-1a Evaluate Ex 6

Example 2-1a Evaluate Ex 7

Example 2-1a Ex 8