The Cartesian product `A xx A` has 9 elements among which are found (-1,0) and (0,1). Find the set A and the remaining elements of `A xx A`

The Cartesian product PxxP has 9 elements among which are found (-a,0) and (a,0) . A relation from P to P is defined as R={(x,y):x+y=0} Find P.

The Cartesian product PxxP has 9 elements among which are found (-a,0) and (a,0) . A relation from P to P is defined as R={(x,y):x+y=0} Depict the relation using an arrow diagram.

The Cartesian product PxxP has 9 elements among which are found (-a,0) and (a,0) . A relation from P to P is defined as R={(x,y):x+y=0} Write down the domain and range of R.

The Cartesian product PxxP has 9 elements among which are found (-a,0) and (a,0) . A relation from P to P is defined as R={(x,y):x+y=0} How many relations are possible from P to P?

Consider the set A={-1,1} Consider all elements in AtimesA .

Find the number of subsets of C which has 3 elements.

Which element has a valency 1?

Find the oxidation number of the elements which are underlined in the compounds given below. Among these find out the elements which show variable oxidation numbers. MgO (Hint. Oxidation number o = -2, Cl = -1, K = +1)