Question 824113
Given X = {15, 22, 33, 44, 89, 165, 1025} 
and   Y = {-5, 15, 33, 88, 99, 150, 160, 1025}

Which of the following statements is false? 

X U Y = {-5, 15, 22, 33, 44, 89, 99, 150, 160, 165, 1025}
Note:: 88 is missing from XUY
======================================
X ∩ Y = {15, 33, 1025}
======================================
Ø ⊂ (X U Y)
=================
Cheers,
Stan H.
=================