Question

E=x|x€N, x=2•n-1, n€N*, n<_4

Answer 1

Răspuns:

E={1,3,5,7}

Explicație pas cu pas:

n=1 => x=2·n-1=2·1-1=2-1=1

n=2 => x=2·n-1=2·2-1=4-1=3

n=3 => x=2·n-1=2·3-1=6-1=5

n=4 => x=2·n-1=2·4-1=8-1=7

E={1,3,5,7}