`x^(2)=xy` is a relation which is

If (x, y) in R xx R then xy = x^2 is a relation which is

Given a relation R_(1) ,on the set R ,of real numbers,as R_(1)={(x,y):x^(2)-3xy+2y^(2)=0,x,y in R} .Is the relation R reflexive or symmetric?

If R = (x,y) , xy = 12 is a relation on N, write the domain of R.

rho is such a relation on the set real numbers RR where x rho y if and xy gt 0 . Then which of the following is / are true ?

Let a relation R in the set of natural number be defined by (x,y) in R iff x^(2)-4xy+3y^(2)=0 for all x,y in N . Then the relation R is :

Are that following pair of statements negation of each other? (i) The relation xy=yx is true for every real number x and y . . (ii) There exists real number x and y for which the relation xy=yx is not true .