Let R = {(x, y) : x, y ϵ A, and x + y =5} where A ={1,2,3,4,5}, then R is
Reflexive
Symmetric
Transitive
equivalence
R = {(1, 4), (2, 3), (3, 2), (4, 1)}
∴ R is symmetric (a, b) ϵ R ⇒ (b, a) ϵ R
P={(x,y):x,y ϵ R,x2+y2=1},then P is
Let R be the relation over the set of all straight lines in a plane such that
l1Rl2⇔l1⊥l2. Then, R is