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For an onto function range is equivalent to codomain.

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For an onto function range is equivalent to codomain.

(a) True

(b) False

I have been asked this question during an interview.

Question is from Number of Functions topic in chapter Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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The correct answer is (a) True

Easiest explanation: Since in onto function every image should have preimage thus all the elements in codomain should have preimages.

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