Question

Fie A= {1,2,3,4,5}. Determinati numarul de elemente ale multimii B={x∈R| x=(n-1)×(n-2)×(n-3)+4, n apartine lui A}

Multumesc frumos !

Answer 1

n=1 x1=0+4=4
n=2 x2=0+4=4
n=3 x3=4
n=4  x4=6+4=10
n=5  x5  4*3*2+4=28
B={4,10,28}