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A function sending distinct elements to distinct images is:
AOne-one
BOnto only
CConstant
DPeriodic
Answer & Solution
Correct answer: A. One-one
1. Distinct inputs are being sent to distinct outputs.
2. No two elements of X then share an image in Y.
3. Such a function is called one-one.
_Source: NCERT Class 12 Mathematics Part I, Chapter 1, Relations and Functions._
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