Finding the First 4 Terms of (1-x)^-1 Expansion

  • Thread starter Thread starter boneill3
  • Start date Start date
  • Tags Tags
    Expansion Terms
Click For Summary
SUMMARY

The discussion focuses on finding the first four terms of the series expansion for the function (1-x)-1 using the Taylor series method. The correct expansion is identified as 1 + x + x2 + x3 + x4, which aligns with the Taylor series formula for functions expanded around zero. The formula for the Taylor series is confirmed as Σ(f(n)(0)xn/n!). The participants clarify the application of the Taylor series to derive the series expansion accurately.

PREREQUISITES
  • Understanding of Taylor series expansion
  • Familiarity with calculus, specifically derivatives
  • Basic knowledge of power series
  • Ability to manipulate algebraic expressions
NEXT STEPS
  • Study the derivation of Taylor series for various functions
  • Learn about convergence of power series
  • Explore applications of Taylor series in approximating functions
  • Investigate the relationship between Taylor series and Maclaurin series
USEFUL FOR

Students studying calculus, mathematics educators, and anyone interested in series expansions and their applications in mathematical analysis.

boneill3
Messages
126
Reaction score
0

Homework Statement



To find the general series expansion (1-x)^-1 for the first 4 terms
Do i just use the taylor series ?


Homework Equations



f(x) = f(x) + f '(x)/1! x + f ''(x)/2! x^2 + f '''(x)/3! x^3

The Attempt at a Solution



= 1 + x + x^2 + x^3 + x^4 etc.

regards
Brendan
 
Physics news on Phys.org
Looks good, except the taylor series of any function f around 0 is

[tex] \sum{\frac{f^{(n)}(0)x^n}{n!}}[/tex]
 

Similar threads

Replies
2
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 31 ·
2
Replies
31
Views
3K
  • · Replies 27 ·
Replies
27
Views
4K
  • · Replies 5 ·
Replies
5
Views
3K
Replies
4
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 105 ·
4
Replies
105
Views
11K
Replies
2
Views
3K