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Class XI Mathematics Quiz: Relations and Functions
Class XI
Mathematics
Relations and Functions
12 questions
MEDIUM
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Preview questions
1. What is the definition of a relation in mathematics?
A set of ordered pairs · A single ordered pair · A function only · A collection of numbers
2. Which of the following represents a function?
{(1, 2), (1, 3)} · {(2, 3), (3, 4)} · {(4, 5), (5, 4), (4, 6)} · {(3, 3), (3, 4)}
3. If A = {1, 2, 3} and B = {4, 5}, how many relations can be formed from A to B?
8 · 6 · 12 · 4
4. What type of relation is defined as a relation where every element of the first set is related to every element of the second set?
Reflexive · Symmetric · Universal · Empty
5. Which of the following is a reflexive relation?
{(1, 1), (2, 2), (3, 3)} · {(1, 2), (2, 3)} · {(1, 2), (2, 1)} · {(1, 2), (3, 4)}
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