8.2_bzca5e

# 8.2_bzca5e - an Arithmetic Sequence Technology On the TI...

This preview shows pages 1–15. Sign up to view the full content.

Section 8.2 Arithmetic Sequences

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Arithmetic Sequences

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
The graph of each arithmetic sequence forms a set of discrete points lying on a straight line. An arithmetic sequence is a linear function whose domain is the set of positive integers. If the first term 1 1 of an arithmetic sequence is a ,each term after the first is obtained by adding d, the common difference, to the previous term. This can be expressed recursively as follows: a n n a d - = +
Example 1 1 If a 10, and a =a 3 where 2 5, find the first 4 terms for this sequence n n n - = +

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
The General Term of an Arithmetic Sequence

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Example 5 Find the fifth term, a , of the arithmetic sequence whose first term is 3 and whose common difference is -4.
The Sum of the First n Terms of

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: an Arithmetic Sequence Technology On the TI 83, 84 Calculator: 2nd - STAT (list)-MATH-#5 for Sum 2nd - STAT(list)-OPS-#5 for Seq Then in parenthese type: (expression, X, lower bound, upper bound, increment) Example 20 1 Find the following sum: 3 7 i i = + (a) (b) (c) (d) Write the formula for the general term (the nth term) of the arithmetic sequence. Do not use a recursion formula. 3,6,9,12,15,. .. 3 ( 1)3 ( 1)3 3 2 3 3 n n n n a n a n a n a n = +-=-= + = + (a) (b) (c) (d) 16 1 Find the a term when a 20 and d= 3. = --65 68 70 60----(a) (b) (c) (d) 6 1 Find the following sum: 2 5 i i =- 15 12 6 9-...
View Full Document

## This document was uploaded on 10/26/2011 for the course FKP bmfp at UTEM Chile.

### Page1 / 15

8.2_bzca5e - an Arithmetic Sequence Technology On the TI...

This preview shows document pages 1 - 15. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online