Determine whether the relation R on the set of integers Z is reflexive,symmetric,antisymmetricand /or transitive? which of these relations is equivalence relations?which of these relations is partial ordering?
a. xRy if and only if x^2?y^2(mod 4)
b. xRy if and only if gcd(x,y)=1
c. xRy if and only if x^2+y^2 is even