/(1-bz-az2)=∑∞n= 0  fn (z)n be a power series. Find the radius of convergence of ∑∞n= 0  fn (z)n using p(z) by writing it as a product of linear factors.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let 1/(p(z))=(1/(1-bz-az2)=∑n= 0  f(z)be a power series. Find the radius of convergence of ∑n= 0  f(z)using p(z) by writing it as a product of linear factors. 

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