This video lecture from Sets, Functions and Groups (F.Sc. first year Mathematics) covers: Question numbers 3-9 of exercise 2.3. In these questions we verify the De Morgan's laws, distributive properties for the given pair of sets using venn diagrams. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.