Question

Find a relation R from set A to B defined by “is less than” for the sets A={2,3,4} and B={1,2,5}

Answer 1

Step-by-step explanation:

Clearly

R ={(a,b) ∈ A x B : a< b}

Therefore,

R = {(1, 4), (1, 5), (2, 4), (2, 5), (3, 4), (3, 5), (4, 5)}.

So,

R-1 = {(4, 1), (5, 1), (4, 2), (5, 2), (4, 3), (5, 3), (5, 4)}.