Question

What should be the relation between range and codomain of a function, for a function to be an into function -

• A. Range < Co domain
• B. Range > Co domain
• C. Range = Co domain
• D. None of the above.

Answer 1

The correct option is A

Range < Co domain

The definition of an into function says that into function is something in which some elements of co-domain are not mapped to any element of domain or some elements in co –domain will never be an output. So the range will be a subset of the co –domain.