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(a) Expand $ 1/\sqrt[4]{1 + x} $ as a power series.

(b) Use part (a) to estimate $ 1/\sqrt [4]{1.1} $ correct to three decimal places.

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a. $\sum_{n=1}^{\infty}\left(\frac{-\frac{1}{4}}{n}\right) x^{n}$b. 0.976

Calculus 2 / BC

Chapter 11

Infinite Sequences and Series

Section 10

Taylor and Maclaurin Series

Sequences

Series

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University of Michigan - Ann Arbor

University of Nottingham

Lectures

01:59

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.

02:28

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.

03:37

a.Find the first four nonz…

02:29

a. Find the first four non…

04:14

Calculate the power series…

05:18

02:23

03:02

Use the identity $$\frac{1…

The problem is part: a expand 1 over 1 plus x to the power of 1 over 4 that a power series so for part, a 1 over 1 plus x to the power 1 force is equal to 1 plus x to the power of negative force. This is equal to some from 0 to infinity negative la force in times x to the power part b. Use part a to estimate 1 over. Is it 1.1 to the power of 1 force corrected to 3 decimal places? So, in every case we can light x. Is equal to 0.1, while n is equal to 4? We have negative 1 force 4 times 0.1 to the power. 4 is at 0.9 times 10 to the power of negative 5. So behalf in this series, when x is equal to 0.1 is about 1 plus negative 1 force. 1 have ter .1 plus negative force 2 times 2.1 squared plus negative plus force 3.1 cube, which is about 0.976.

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