GATE 2023 Discrete Mathematics Evaluation Quiz 6

______ and _______ are the two binary operations defined for lattices.

If A = {1, 2, 4}, B = {2, 4, 5}, C = {2, 5}, then (A -B) Ս (B - C) is?

The minimum number of colours that is sufficient to vertex-colour any planar graph is _______________

The binary relation {(1,1), (2,1), (2,2), (2,3), (2,4), (3,1), (3,2)} on the set {1, 2, 3} is __________

The maximum number of edges in a bipartite graph on 12 vertices is __________________________.

In a lattice defined by the Hasse diagram given below,  how many complements does the element 'e' have?

Let A and B be two non-empty relations on a set S. Which of the following statements is false?

The number of articulation point of the following graph is: