Respostas

  • Usuário do Brainly
2014-06-22T19:41:34-03:00
Se f:{-3, 2,0,√5}
f(x)=2x²+1
y=2(-3)²+1=2(9)+1=19
y=2(2)²+1=2(4)+1=9
y=2(0)²+1=1
y=2(√5)²+1=2(5)+1=11

Im={1,9,11,19}