Question

B={x|X€N și x+1€D24 }​

Answer 1

Răspuns:

D24={1,24,2,12,3,4,8}

x+1=1

x=1-1

x=0

x+1=24

x=24-1

x=23

x+1=2

x=2-1

x=1

x+1=12

x=12-1

x=11

x+1=3

x=3-1

x=2

x+1=4

x=4-1

x=3

x+1=8

x=8-1

x=7