Question
Mathematics Question on Sets
Let A be the square of natural numbers and x, y are any two elements of A. Then
A
x−y∈A
B
xy∈A
C
x+y∈A
D
yx∈A
Answer
xy∈A
Explanation
Solution
Answer (b) xy∈A
Let A be the square of natural numbers and x, y are any two elements of A. Then
x−y∈A
xy∈A
x+y∈A
yx∈A
xy∈A
Answer (b) xy∈A