Mathematics Part I - Relations and Functions Quiz

Class XII

Mathematics

Relations and Functions

14 questions

HARD

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Preview questions

1. Which of the following is a function?

A relation that assigns multiple outputs for a single input · A relation that assigns exactly one output for each input · A relation that has no outputs · A relation that is not defined

2. If A = {1, 2, 3} and B = {x | x is an even number less than 10}, what is the relation R from A to B?

{(1, 2), (2, 4), (3, 6)} · {(1, 4), (2, 6), (3, 8)} · {(1, 2), (2, 6), (3, 8)} · {(1, 8), (2, 10), (3, 12)}

3. Which of the following is a reflexive relation?

R = {(1, 1), (2, 2)} on set {1, 2, 3} · R = {(1, 2), (2, 3)} on set {1, 2, 3} · R = {(1, 2), (2, 1)} on set {1, 2} · R = {(2, 2), (3, 3)} on set {1, 2, 3}