bonjour,
exo 1:
A= 2sur12 + 5sur3
= 2sur12 + 5x4 sur 3x4
= 2sur12 + 20sur12
= 22sur12
B= 6sur5 - 1
= 6sur5 - 5sur5
= 1sur5
C= 9sur6 + 1
= 9sur6 + 6sur6
= 15sur6
D= 5sur32 - 2sur4
= 5sur32 - 2x8 sur 4x8
= 5sur32 - 16sur32
= - 11sur32
E= 1sur9 + 6sur9
= 7sur9
F= 4sur5 + 8
= 4sur5 + 40 sur 5
= 44sur5
G= 6sur48+ 8sur8
= 6sur48+ 8x6+8x6
= 6sur48 + 48sur48 (soit 1)
= 54sur48
H= 5-1sur5
= 25sur5-1sur5
= 24sur5
exo 2
A= 4sur7 + 6sur7
= 10sur7
B= 7sur60 + 10sur10
= 7sur60 + 10x6sur10x6
= 7sur60 + 60sur60 (soit 1)
= 67sur60
C= pas compris
D= 6sur9 + 1
= 6sur9 + 9sur9
= 15sur9
E= 3
F= 8sur48+3sur8
= 8sur48+ 3x6 sur 8x6
= 8sur48 + 18sur48
= 26sur48
G= 6sur32 + 9sur4
= 6sur32 + 9x8sur4x8
= 6sur32 + 72sur32
= 78sur 32
H= 1-1sur6
= 6sur6 - 1sur6
= 5sur6
Voila je te laisse trouver les entiers lorsque c'est possible :)
