A={x:x∈N,x≤5} and B={y:y∈Z and −30≤y<−25}, then A and B are ________.
All natural numbers which divide 42
A={x:x∈N,x≤5}
A = {1, 2, 3, 4, 5}
n(A) = 5
B={y:y∈Z and −30≤y<−25},
B={−30,−29,−28,−27,−26}
n(B)=5
As n(A) = n(B), the sets A and B are equivalent.