alleryDomain, co-domain and range were first introduced in:
AClass IX
BClass VIII
CClass VII
DClass XI
Answer & Solution
Correct answer: D. Class XI
1. Relations and functions are picked up again in Class XII.
2. These ideas were first met a year earlier.
3. They were introduced in Class XI.
_Source: syllabus Mathematics Part I, Chapter 1, Relations and Functions._
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