Revision – Sets, Relations & Functions

Grade 11 Maths — Revision – Sets, Relations & Functions: 25 practice questions with instant scoring and explanations.

1. A set is a collection of:
2. A ∩ B represents:
3. A ∪ B represents:
4. A' represents:
5. A - B represents:
6. A × B represents:
7. The number of elements in power set of n-element set is:
8. A relation from A to B is:
9. Domain of a relation is:
10. Range of a relation is:
11. A function is a relation where:
12. Domain of f: A → B is:
13. Codomain of f: A → B is:
14. Range of f is subset of:
15. A function is onto (surjective) if:
16. A function is one-to-one (injective) if:
17. A bijection is a function that is:
18. Inverse function f⁻¹ exists if f is:
19. If f(x) = 2x + 1, then f⁻¹(x) =:
20. The composition f ∘ g means:
21. If A and B are disjoint, then A ∩ B =:
22. De Morgan's Law: (A ∪ B)' =:
23. The number of relations from A to B, where |A| = m, |B| = n is:
24. Identity function I: A → A is:
25. Constant function f(x) = c is: