Question

A function f from set A to set B is a relation which associates each element x in A to ______ element B
​

Answer 1

Answer:

A functiom from a set A is called reflexive relation, if each element of A is related to itself.

as for set A={1,2}

reflexive relation will be

R={(1,1),(2,2)}

Answer 2

Answer:

A (123), B(342)

(1234) The set is mathmatics . salutations