let-give-the-sequence-u-n-u-0-1-and-u-1-1-and-u-n-2-2u-n-1-u-n-find-the-radius-of-convegence-for-this-serie-

Question Number 31973 by abdo imad last updated on 17/Mar/18

l e t g i v e t h e s e q u e n c e (u_{n}) / u_{0} = 1 a n d u_{1} = - 1 a n d

u_{n + 2} = 2 u_{n + 1} - u_{n} . f i n d t h e r a d i u s o f c o n v e g e n c e f o r

t h i s s e r i e .