(A) Find the radius of convergence of the power series 23 26 + 3.2 (6-5)-(3-2) (9-8)-(6-5)-(3-2) y=1- + Remark: The absolute value of the ratio of terms has a very simple and obvious expression and the ratio test indicator can be easily computed from that. (B) Show that the function so defined satisfies the differential equation y" + xy = 0.
(A) Find the radius of convergence of the power series 23 26 + 3.2 (6-5)-(3-2) (9-8)-(6-5)-(3-2) y=1- + Remark: The absolute value of the ratio of terms has a very simple and obvious expression and the ratio test indicator can be easily computed from that. (B) Show that the function so defined satisfies the differential equation y" + xy = 0.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 18T
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