C0900TextPages_page_24

C0900TextPages | page 24 | https://thedailydialectics.com/pdfs/education/C0900TextPages/C0900TextPages.pdf

616 CHAPTER 9 Infinite Series a 2 | 128. If S) a, converges where a, is nonzero, show that 5) — n=! n=1"n diverges. 129. The Fibonacci sequence is defined recursively by Gy. = 4, + G,,,, Where a, = 1 anda, = 1. 1 1 1 (a) Show that = - Gn +1 Wn43 Gy 41 An 42 By +2 An +3 & 1 (b) Show that $) ————— =…