A function from A to B is called the onto function if its range is?
- B
- A
- Neither A nor B
- Both A and B
Explanation
- A function f from A to B is called an onto function (or surjective function) if its range is equal to the codomain B.
- In other words, every element in B is the image of at least one element in A.
- This means that the function covers all the elements in the codomain B, and no element in B is left out.
- So, the correct answer is B.
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