MCQ
In a function from set $A$ to set $B,$ every element of set $A$ has $............$ image in set $B:$
  • one and only one
  • B
    different
  • C
    same
  • D
    many

Answer

Correct option: A.
one and only one
A relation from a set $A$ to a set $B$ is said to be a function if every element of set $A$ has one and one image in set $B.$

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