Question

Let A = { x belongs to Z : X=(-1)^n , n belongs N and B = {x belongs to z; 1/x is an integer)then
(a)A n B = {1}
(b)A=B
(c)A n B = {-1}
(d)A n B = {-1,1}

pls answer fast ​

Answer 1

Answer:

A = {1,2,3,..........}

B = {1}

AnB = {1}