State the sets represented by the shaded portion of following venn-diagrams :
(i) (A ∪ B)' Ans.
(ii) B - A or A′∩B Ans.
(iii) (B - A)' Ans.
The shaded portion of which of the following Venn diagrams represents the set A - B?
The set represented by the shaded portion of the below Venn - diagram is ___.