Question

Is 2\5×(-3\4+5\2)-2\5×(-2\3)×5\3 justify your answer​

Answer 1

Answer:

A={1,2,3,4} and B={1,5,9,11,15,16}

∴A×B={(1,1),(1,5),(1,9),(1,11),(1,15),(1,16),(2,1),(2,5),(2,9),(2,11),(2,15),(2,16),

(3,1),(3,5),(3,9),(3,11),(3,15),(3,16),(4,1),(4,5),(4,9),(4,11),(4,15),(4,16)}

It is given that f={(1,5),(2,9),(3,1),(4,5),(2,11)}

(i) A relation from a non-empty set A to a non-empty set B is a subset of the Cartesian product A×B

It is observed that f is a subset of A×B

Thus f is a relation from A to B.