Skip to main content
Ch. 10 - Sequences and Infinite Series
Briggs - Calculus: Early Transcendentals 3rd Edition
Briggs3rd EditionCalculus: Early TranscendentalsISBN: 9780136847243Non è quello che usi tu?Cambia libro di testo
Capitolo 10, Problema 10.1.13

13–20. Explicit formulas Write the first four terms of the sequence { aₙ }∞ₙ₌₁. 
aₙ = 1/10ⁿ

Guida verificata passo dopo passo
1
Identify the general term of the sequence given by the explicit formula \(a_n = \frac{1}{10^n}\), where \(n\) is the term number starting from 1.
To find the first term \(a_1\), substitute \(n=1\) into the formula: \(a_1 = \frac{1}{10^1}\).
To find the second term \(a_2\), substitute \(n=2\) into the formula: \(a_2 = \frac{1}{10^2}\).
To find the third term \(a_3\), substitute \(n=3\) into the formula: \(a_3 = \frac{1}{10^3}\).
To find the fourth term \(a_4\), substitute \(n=4\) into the formula: \(a_4 = \frac{1}{10^4}\).

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Sequences and Terms

A sequence is an ordered list of numbers defined by a specific rule. Each number in the sequence is called a term, denoted as aₙ, where n indicates the term's position. Understanding how to identify and write terms from a given formula is fundamental.
Video consigliato:
8:22
Introduction to Sequences

Explicit Formula for a Sequence

An explicit formula defines the nth term of a sequence directly in terms of n, allowing calculation of any term without knowing previous terms. For example, aₙ = 1/10ⁿ means each term is the reciprocal of 10 raised to the nth power.
Video consigliato:
5:17
Arithmetic Sequences - General Formula

Exponentiation and Powers of 10

Exponentiation involves raising a base number to a power, indicating repeated multiplication. Powers of 10 are especially important in sequences, as 10ⁿ means 10 multiplied by itself n times, affecting the size and pattern of the terms.
Video consigliato:
05:58
Intro to Power Series
Pratica correlata
Domanda del libro di testo

32–49. Choose your test Use the test of your choice to determine whether the following series converge absolutely, converge conditionally, or diverge.

∑ (from k = 1 to ∞) k¹⁰⁰ / (k + 1)!

47
views
Domanda del libro di testo

16–17. {Use of Tech} Periodic savings

Suppose you deposit m dollars at the beginning of every month in a savings account that earns a monthly interest rate of r, which is the annual interest rate divided by 12 (for example, if the annual interest rate is 2.4%, r = 0.024/12 = 0.002). For an initial investment of m dollars, the amount of money in your account at the beginning of the second month is the sum of your second deposit and your initial deposit plus interest, or m + m(1 + r). Continuing in this fashion, it can be shown that the amount of money in your account after n months is


Aₙ = m + m(1 + r) + ⋯ + m(1 + r)ⁿ⁻¹.


Use geometric sums to determine the amount of money in your savings account after 5 years (60 months) using the given monthly deposit and interest rate.


17. Monthly deposits of \$250 at a monthly interest rate of 0.2%

67
views
Domanda del libro di testo

9–36. Comparison tests Use the Comparison Test or the Limit Comparison Test to determine whether the following series converge.

{Use of Tech} ∑ (k = 1 to ∞) 1 / (4lnk)

77
views
Domanda del libro di testo

Why does the value of a converging alternating series with terms that are nonincreasing in magnitude lie between any two consecutive terms of its sequence of partial sums?

88
views
Domanda del libro di testo

39–44. {Use of Tech} Estimating infinite series Estimate the value of the following convergent series with an absolute error less than 10⁻³.


∑ (k = 1 to ∞) (−1)ᵏ / k⁵

39
views
Domanda del libro di testo

17–22. Integral Test Use the Integral Test to determine whether the following series converge after showing that the conditions of the Integral Test are satisfied.

∑ (k = 1 to ∞) 1 / (∛(5k + 3))

85
views