If A, B and C are non-empty sets such that `AnnC=phi`, then what is `(AxxB)nn(CxxB)` equalt ot?

If A and B are non-empty sets such that A sup B, then

If A and B are two finite sets such that A nn B != phi , then n (A uu B) =

If A and B are two non empty sets then AUB=A nn B iff

If A, B and C are three non-empty sets such that n(A nn B nn C) = 10 and n(A DeltaB) = n(B Delta C) = n(C Delta A) = 60 , then find the number of elements in A uu B uu C .

If A, B and C are non empty sets, then (A-B) cup (B-A) equals

If A nn C=phi, then prove that (A xx B)nn(C xx B)=phi

Let A be a non-empty set such that AxxB=AxxC . Show that B=C .

Let A be a non-empty set such that AxxB=AxxC . Show that B=C .