EXAMPLE 9 Find the Maclaurin series for the function f(x) and its radius of convergence. 1 4- X SOLUTION We write f(x) in a form where we can use the binomial series. || 1 √ 4²-x = ²/(1-4)-¹/² X || 1 ( Using the binomial series with k = -x/4, we have 1 1 ¹-√ ₁ + (-²¹) (-) · 1 + -1/2 00 = + 2 (-³) ( Σ 2 n = 0 n 1 4 and with x replaced by 2 (-x)²
EXAMPLE 9 Find the Maclaurin series for the function f(x) and its radius of convergence. 1 4- X SOLUTION We write f(x) in a form where we can use the binomial series. || 1 √ 4²-x = ²/(1-4)-¹/² X || 1 ( Using the binomial series with k = -x/4, we have 1 1 ¹-√ ₁ + (-²¹) (-) · 1 + -1/2 00 = + 2 (-³) ( Σ 2 n = 0 n 1 4 and with x replaced by 2 (-x)²
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.2: Arithmetic Sequences
Problem 67E
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