fiNd the Inverse of the Function F or Else Explain $$f : A \rightarrow B \text { where } A = \{ a , b , c \} , B = \{ 1,2,3 \} \text { and } f = \{ ( a , 2 ) , ( b , 1 ) , ( c , 3 ) \}$$

find the inverse of the function f or else explain why the function has no inverse.
- $$f : A \rightarrow B \text { where } A = \{ a , b , c \} , B = \{ 1,2,3 \} \text { and } f = \{ ( a , 2 ) , ( b , 1 ) , ( c , 3 ) \}$$