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Problem

Determine whether the sequence converges or diver…

00:59

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Problem 22 Easy Difficulty

Calculate, to four decimal places, the first ten terms of the sequence and use them to plot the graph of the sequence by hand. Does the sequence appear to have a limit? If so, calculate it. If not, explain why.
$ a_n = 1 + \frac{10^n}{9^n} $


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Related Courses

Calculus 2 / BC

Calculus: Early Transcendentals

Chapter 11

Infinite Sequences and Series

Section 1

Sequences

Related Topics

Sequences

Series

Discussion

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Top Calculus 2 / BC Educators
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Missouri State University

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University of Michigan - Ann Arbor

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Calculus 2 / BC Courses

Lectures

Video Thumbnail

01:59

Series - Intro

In mathematics, a series is, informally speaking, the sum of the terms of an infinite sequence. The sum of a finite sequence of real numbers is called a finite series. The sum of an infinite sequence of real numbers may or may not have a well-defined sum, and may or may not be equal to the limit of the sequence, if it exists. The study of the sums of infinite sequences is a major area in mathematics known as analysis.

Video Thumbnail

02:28

Sequences - Intro

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence. Unlike a set, order matters, and exactly the same elements can appear multiple times at different positions in the sequence. Formally, a sequence can be defined as a function whose domain is either the set of the natural numbers (for infinite sequences) or the set of the first "n" natural numbers (for a finite sequence). A sequence can be thought of as a list of elements with a particular order. Sequences are useful in a number of mathematical disciplines for studying functions, spaces, and other mathematical structures using the convergence properties of sequences. In particular, sequences are the basis for series, which are important in differential equations and analysis. Sequences are also of interest in their own right and can be studied as patterns or puzzles, such as in the study of prime numbers.

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Watch More Solved Questions in Chapter 11

Problem 1
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Problem 4
Problem 5
Problem 6
Problem 7
Problem 8
Problem 9
Problem 10
Problem 11
Problem 12
Problem 13
Problem 14
Problem 15
Problem 16
Problem 17
Problem 18
Problem 19
Problem 20
Problem 21
Problem 22
Problem 23
Problem 24
Problem 25
Problem 26
Problem 27
Problem 28
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Problem 30
Problem 31
Problem 32
Problem 33
Problem 34
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Problem 36
Problem 37
Problem 38
Problem 39
Problem 40
Problem 41
Problem 42
Problem 43
Problem 44
Problem 45
Problem 46
Problem 47
Problem 48
Problem 49
Problem 50
Problem 51
Problem 52
Problem 53
Problem 54
Problem 55
Problem 56
Problem 57
Problem 58
Problem 59
Problem 60
Problem 61
Problem 62
Problem 63
Problem 64
Problem 65
Problem 66
Problem 67
Problem 68
Problem 69
Problem 70
Problem 71
Problem 72
Problem 73
Problem 74
Problem 75
Problem 76
Problem 77
Problem 78
Problem 79
Problem 80
Problem 81
Problem 82
Problem 83
Problem 84
Problem 85
Problem 86
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Problem 88
Problem 89
Problem 90
Problem 91
Problem 92
Problem 93

Video Transcript

Let's find up to four decimal places the first ten terms of the sequence. So it's a one a two, all the way up to a ten. So I'll go to a calculator and plug this in and goto four decimal places so you can see. Here's the table. Here's our and one plus ten end over nine to the end and five digits. So that means we're going for places after the decimal and you could pause the screen and go ahead and record these values. So I'll go back to the original and then used them to plot a graph by hand so you could use the table to drop the graph or come over here to. Does Mose hear about already planted the graph? Here's the formula for Anne and then here's the graph of it, and we could see the graph is increasing and it looks like this increasing at an increasing rate. So does the sequence appear to have a limit? I say No. It appears to diverge. No, it's actually explain why. So let's look at and which we can write is one plus ten over nine to the end. Now I claim that the limit is n goes to infinity of a n is infinity Since the limit as n goes to infinity of ten over nine to the end equals infinity Now, any time you take a number bigger than one and you keep multiplying by itself, you're going to get larger. But if you like more convincing argument of this last fast over here, what you can do is the following. First of all, it's maybe use X here instead of the end. You have ten over nine to the ex. You can rewrite this as e to the X natural log ten over nine. So here I'm just using the fact that we can write any number. Why is eat to the Ellen? Why? Due to the fact that he and Eleanor in Versace and now this is just e infinity Ellen ten over nine. But this is just either the infinity since ln ten over nine is positive and eat of infinity equals infinity. Therefore, since Ann is obtained by adding one to this term here, we've also shown and never just to infinity. So the sequence appears to diverge. And then we just proved that the sequence and diverges So that's your final answer

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Related Topics

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Catherine Ross

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Video Thumbnail

01:59

Series - Intro

In mathematics, a series is, informally speaking, the sum of the terms of an infinite sequence. The sum of a finite sequence of real numbers is called a finite series. The sum of an infinite sequence of real numbers may or may not have a well-defined sum, and may or may not be equal to the limit of the sequence, if it exists. The study of the sums of infinite sequences is a major area in mathematics known as analysis.

Video Thumbnail

02:28

Sequences - Intro

In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed. Like a set, it contains members (also called elements, or terms). The number of elements (possibly infinite) is called the length of the sequence. Unlike a set, order matters, and exactly the same elements can appear multiple times at different positions in the sequence. Formally, a sequence can be defined as a function whose domain is either the set of the natural numbers (for infinite sequences) or the set of the first "n" natural numbers (for a finite sequence). A sequence can be thought of as a list of elements with a particular order. Sequences are useful in a number of mathematical disciplines for studying functions, spaces, and other mathematical structures using the convergence properties of sequences. In particular, sequences are the basis for series, which are important in differential equations and analysis. Sequences are also of interest in their own right and can be studied as patterns or puzzles, such as in the study of prime numbers.

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