Which one of the following relations from to is a function?
MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions
Problem
Which one of the following relations from A={a,b,c} to B={1,2} is a function?
(a) {(a,1),(b,2),(c,1),(d,2)}
(b) {(a,1),(b,2)}
(c) {(a,1),(b,2),(c,1)}
(d) {(a,1),(b,2),(c,1),(a,2)}