Relations and Functions — Important Questions
CBSE · Class 11 · Mathematics
136 important questions from Relations and Functions for CBSE Class 11 Mathematics, with answers. Covers Counting Relations and Function Tests.
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Important Questions from Relations and Functions
What makes a relation a function?
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Every element in the domain has exactly one image
A function requires that each element in the domain maps to precisely one element in the codomain
What is the symbol used to represent a function from set A to set B?
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f: A → B
The notation f: A → B represents a function f that maps elements from set A to set B
For the function f(x) = x², what is f(3)?
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9
For f(x) = x², when x = 3, the result is 3² = 9
What is the range of a relation?
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The set of second elements in ordered pairs
Range is the collection of second elements in the ordered pairs of a relation
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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