alleryA function that is both one-one and onto is called:
ABijective
BInjective
CSurjective
DReflexive
Answer & Solution
Correct answer: A. Bijective
1. One-one alone gives injective, onto alone gives surjective.
2. Holding both properties at once is a stronger condition.
3. Such a function is called bijective.
_Source: syllabus Mathematics Part I, Chapter 1, Relations and Functions._
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