suite.py

Created by aimeemonabusmail

Created on December 03, 2021

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Soit (Un)geometrique de raison 
q=0,8 et de premier terme U0=40

1)Calculer U1 et U2
2)Relation de recurrence
3)formule explicite
4)Decroissante ou croissante
5)U30 à 10^^-3 pres

1) U1=U0xq     U2=U1xq
     =40x0,8     =32x0,8
     =32         =25,6
     
2)Un+1=qxUn=0,8xUn

3)Un=U0xq^^n
U1=40x0,8^^n

4)q appartient [0,1], donc (Un) est
decroissante U0 0

5)U30=40x0,8^^30=0,05

Soit (Un)arithmetique de raison 
r=5 et de premier terme U0=3

1)Calculer U1 et U2
2)Relation de recurrence
3)formule explicite
4)Decroissante ou croissante
5)U30 à 10^^-3 pres

1) U1=U0+5    U2=U1+5
     =3+5       =8+5
     =8         =13
     
2)Un+1=Un+r=Un+5

3)Un=U0+nxr
U1=U0+5n

4)U0 augmente donc (Un) est
croissante U0 0

5)U30=3+5x30

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