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QUIZ

University

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Kailash Kumar

4 years

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20 questions

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- 1. Multiple Choice1 minute1 pt
**The Universal Set = { -4, 3, -2, -1, 0, 1, 2, 3 ,4} and A = {0}.****What is the complement of A?**{-4, -3, -2, -1, 0, 1, 2, 3}

{-3, -2, -1, 1, 2, 3}

{-4, -3, -2, -1, 1, 2, 3, 4}

{-4, -3, -2, -1, 1, 2, 3}

- 2. Multiple Choice1 minute1 pt
**What is n(A) (i.e cardinality) for the set:****A = {14, 16, 18, 20, 22, 24}**6

12

4

8

- 3. Multiple Choice1 minute1 pt
**If P = {0, 1, 2, 3, 4}, Q = {4, 5, 6, 7}****R = {3, 6, 9}, and S = {6, 12, 18}****Then what is (P ∪ Q) ∩ (S ∪ R)?**{6}

{3, 6}

{4, 6}

{1, 2, 3, 4, 5, 6, 7, 9, 12, 18}

- 4. Multiple Choice1 minute1 pt
**What statement does the shaded region represent?**A or B and C

Not C

A or B

B and C or A

- 5. Multiple Choice1 minute1 pt
**What type of set is denoted as either { } or ∅?**Universal Set

Disjoint Set

Complement of a Set

Empty (or Null) Set

- 6. Multiple Choice1 minute1 pt
**Let A = {2, 3, 4, 5, 6, 7} B = {2, 4, 7, 8) C = {2, 4}. Fill in the blanks by ⊂ or ⊄ to make the resulting statement true.****B __ A**⊂

⊄

- 7. Multiple Choice1 minute1 pt
**Which of the following represents the shaded region?**(A ⋃ B)'

(A ∩ B)'

A'

B'

- 8. Multiple Choice1 minute1 pt
**A={x: x is natural number less than 1} is an example of**Finite Set

Infinite Set

Null Set

Singleton Set

- 9. Multiple Choice1 minute1 pt
**A = {x : x ∈ N and x² = 4} is**Finite Set

Infinite Set

Null Set

Singleton Set

- 10. Multiple Choice1 minute1 pt
**i. Every set is a subset of itself.****ii. Null set is subset to each set.**Only i is true.

Only ii is true.

Both i & ii are true.

None of these

- 11. Multiple Choice1 minute1 pt
**If***n*is total number of elements in a set, then number of possible subsets will ben

2n

n+1

2

^{n} - 12. Multiple Choice1 minute1 pt
**∅ is a proper subset of every set**False

True

- 13. Multiple Choice1 minute1 pt
**If A ⊆ B and B ⊆ A then**A = B

A ≠ B

- 14. Multiple Choice1 minute1 pt
**If A ⋂ B = Φ then A and B are called**Equal sets

Null Sets

Disjoint sets

Finite sets

- 15. Multiple Choice1 minute1 pt
**Idempotent law states that**A ∩ A = A

*A*∩*A*= Φ*A*∩ Φ =*A**A*∩*U*=*A* - 16. Multiple Choice1 minute1 pt
**A ∪ U = U is**Identity law

De-Morgan's Law

Domination Law

Distributive Law

- 17. Multiple Choice45 seconds1 pt
**|A U B| = |A| + |B|**True

False

- 18. Multiple Choice1 minute1 pt
**Set A={x : x**^{2}**−3x+2=0} is equivalent to**A = {1, 2}

A = {-1, 2}

A = {1, 2, 3}

A = {1, -2}

- 19. Multiple Choice1 minute1 pt
**All possible subsets of A = {0, 1, 2} are**{0}, {1}, {2}

{0,1}, {0,2} , {1,2}, {0,1,2}

{0}, {0,1,2}

Φ, {0}, {1}, {2}, {0,1}, {0,2}, {1,2}, {0,1,2}

- 20. Multiple Choice1 minute1 pt
**How can you define {Φ} ?**Null Set

Infinite set

Singleton set containing one element Φ

none of these

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