Let U = {q, r, s, t, u, v, w, x, y, z}
A = {q, s, u, w, y}
B = {q, s, y, z}
C = {v, w, x, y, z}.

Determine the following.

(A ∪ B)'

A. {r, s, t, u, v, w, x, z}

B. {s, u, w}

C. {t, v, x}

*D. {r, t, v, x}

I think Its (D) I'm I right

Question

Let U = {q, r, s, t, u, v, w, x, y, z} 
A = {q, s, u, w, y} 
B = {q, s, y, z} 
C = {v, w, x, y, z}.

Determine the following.

(A ∪ B)'

A. {r, s, t, u, v, w, x, z}	

B. {s, u, w}	

C. {t, v, x}	

*D. {r, t, v, x}  

I think Its (D) I'm I right

anonymous · Answer

Yes, you are correct. The "U" symbol represents a union of A and B, which is all values in both A and B, and the ' represents the complement (values not in the union). D is correct because it contains the only values that are not in either A or B.

anonymous · Answer

Thank you I had a feeling :)