Question

Me ajudemmmmmmmmmmmmmm

Answer 1

Explicação passo-a-passo:

U↑(cima,Une). ↓n(baixo,Pega os iguais)

4)A). AUB={-3, 4, 9, 11},

AnB={∅)

4.B) AUB={-1, 6, 9}, AnB={-1}

5)A). an=18

18×1=18

18×2=36

18×3=54

18×4=72

18×5=90

5.a)S={18, 36, 54, 72, 90}

B). an=n/n+8

1/1+8=1/9

2/2+8=2/10

3/3+8=3/11

4/4+8=4/12

5/5+8=5/13

5.b)S={1/9, 2/10, 3/11, 4/12, 5/13}