Question

Me ajudem!!!!!! Pvfffff!!!!!!!​

Answer 1

Resposta:

A)  

n=0 ==>x=-1

n=1 ==>x=1

n=2 ==>x=3

n=3 ==>x=5

n=4 ==>x=7

A={-1,1,3,5,7}

B)

n=0 ==>x=0

n=1 ==>x=2

n=2 ==>x=6

n=3 ==>x=12

n=4 ==>x=20

B={0,2,6,12,20}

n(A e B)  =2^0   =1  é o elemento vazio