Question

Let X and Y be the following sets: X = {9,25) Y = {1,4,9,16, 25} What is the set X\Y?

Answer 1

Explanation:

X = {9, 25}

Y = (1, 4, 9, 16, 25}

Set difference X and Y:

X ∖ Y = ∅ - Empty set

Answer 2

X/Y means,

`x\in X\text{ and x}\\otin Y`

Thus, X/Y is a null set.

`(\varphi)`

Thus, option (B) is the correct solution.