Math Chapter Wise question with answer

Q01 If the set A has p elements and set B has q elements, then the number of elements in A×B is English · PGT 2010 Q02 If a finite set S has n elements, then the total number of binary operations which are possible over it will be? English · PGT 2004 Q03 The set of natural numbers has: English · OAVS TGT 2022 Q04 A set X has more than one element and for x, y in X, x o y = y. Then: English · UP PCS (Pre) 1998 Q05 A relation in the set of natural numbers N is defined as follows: a < b if a + x = b has a solution in N. Then the... English · UP PCS (Pre) 2000 Q06 A poset (L, ≤) becomes a lattice when every non-empty finite subset of L has: English · OPSC PGT 2017