Lesson 11.1
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Transcript of Lesson 11.1
Lesson 11.1
Sequences and Series
Warm Up:
Comprehension Quiz:Read page 690…1) Who were Titius and Bode?
Close your books
2) What does their sequence model?German Astronomers
The distances between the sun and the planets
3) What did they find at the distance corresponding to the fifth bode number?
Ceres
4) The asteroid belt containing Ceres lies between which 2 planets?
Mars and Jupiter
By reading page 691, define the following terms:
Vocabulary:Sequence:
Terms:
Infinite Sequence:
Ellipsis:
Finite Sequence:
Explicit Formula:
An ordered list of numbers, called terms
The numbers in a sequence
A sequence that continues without end
Three dots, used to indicate an infinite sequence
A sequence that has a last term
A formula that defines the nth term, or general term, of a sequence
n 1 2 3 4 5 6
tn 1 7 17 31 49 71
The first six terms are: 1, 7, 17, 31, 49, and 71
TRY THIS, page 691
1 11 and 3 1, where 2n nt t t n
13 1n nt t
2 13 1 3(1) 1 2t t
3 23 1 3(2) 1 5t t
4 33 1 3(5) 1 14t t
5 43 1 3(14) 1 41t t
6 53 1 3(41) 1 122t t
1 1t
The first six terms are 1, 2, 5, 14, 41, 122
Planet Bode Number Distance from the planet to Sun
5th: Ceres
6th: Jupiter
7th: Saturn
8th: Uranus
By reading page 693, define the following terms:
Vocabulary:Series:
Summation notation:
Sigma:
An expression that indicates the sum of terms of a sequence
A way to express a series in abbreviated form, using the Greek letter sigma
5
1
2n
n Explicit formula for the general
term of the related sequence
Values of n from 1 to 5 are called the index
TRY THIS, page 693
5
1
a. 4k
k
4
1
1b. 2 k
k
4 8 12 16 2060
1 1 2 3 42
1 1025
Homework:
Practice 11.1