suitesari.py

Created by magantojulhad

Created on November 06, 2023

680 Bytes

E = appartenant 
N = ensemble de nombres


Suites arithmetiques

on dit que (un) est une suite 
arithmetique de raison r lorsque,
pour tout n E N, un+1 = un + r
-------------------------------
Si u0 premier terme
un = u0 + nr

Si u1 premier terme
un = u1 + (n-1)r

si on connait up
un = up + (n-p)r
-------------------------------
démontrer suite arithmetique

prouver que 3 termes consecutifs
up+1-up diferent up+2-up-1
si different, pas arithmetique
------------------------------
Variations : 
 une suite est, 
 croissante si r>0
 decroissante si r<0
 constante si r=0
 
 
 
suites geometriques :
  
  Un=u0 q**n
  
  Un=u1 Q**n-1
  
  Un=up q**n-p

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