Răspuns :
Răspuns:
A={1,3,2,4}
A={1,3,4,2}
A={1,2,4,3}
A={1,4,2,3}
A={1,4,3,2}
A={3,1,2,4}
A={3,1,4,2}
A={3,2,1,4}
A={3,2,4,1}
Răspuns:
A={1,2,3,4}
A={1,2,4,3}
A={1,3,2,4}
A={1,3,4,2}
A={1,4,2,3}
A={1,4,3,2}
A={3,1,2,4}
A={3,1,4,2}
A={3,2,1,4}
A={3,2,4,1}
A={3,4,2,1}
A={3,4,1,2}
6 moduri având pe prima poziţie cifra 1
6 moduri având pe prima pozţie cifra 3
=>în total,12 moduri