DESCRIPTIVE FORM OF SET WORKSHEET

Write the each of the following sets in descriptive form.

Question 1 :

 A = {a, e, i, o, u}

Question 2 :

M = {January, February, March, April, May, June, July, August, September, October, November, December}

Question 3 :

D = {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday}

Question 4 :

B = {1, 3, 5, 7, 9, 11}

Question 5 :

C = {1, 4, 9, 16, 25}

Question 6 :

P = {x : x is a letter in the word ‘set theory’}

Question 7 :

Q = {x : x is a prime number between 10 and 20} 

Question 8 :

Q = {1, 2, 3, 4, 5, 6}

Question 9 :

R = {2, 4, 6, 8, ...................}

Question 10 :

S = {3, 6, 9, 12, ...................}

Question 11 :

A = {123, 132, 213, 231, 312, 321}

Question 12 :

B = {x : x² - 9 = 0}

Question 13 :

C = {y : y² - 5y + 6 = 0}

Question 14 :

D = {-5, 5}

Question 15 :

E = {2 + 3i, 2 - 3i}

Question 16 :

F = {(x - 1), (x - 2)}

Question 17 :

G = {f, o, l, w}

Question 18 :

H = {4, 8. 12, 16, 20, 24}

Question 19 :

I = {x : x = 2n, n is an integer such that 0 < k < 5}

Question 20 :

J = {x : x = 2n + 1, n is an integer such that 0 ≤ k < 5}

Answers

1. Answer :

A is the set of all vowels in the English alphabet

2. Answer :

M is the set of months in a years

3. Answer :

D is the set of days in a week

4. Answer :

B is the set of all odd natural numbers less than or equal to 11

5. Answer :

C is the set of all perfect squares less than 26

6. Answer :

P is the set of all letters in the word ‘"set theory"

7. Answer :

Q is the set of all prime numbers between 10 and 20

8. Answer :

Q is the set of natural numbers less than 7

9. Answer :

R is the set of even numbers

10. Answer :

S is the set of multiples of 3

11. Answer :

A is the set of all three digit numbers which can be formed with the digits 1, 2, and 3 without repetition of digits in any number.

12. Answer :

B is the set of all solutions of the equation x² - 9 = 0

13. Answer :

C is the set of all zeros of the equation y² - 5y + 6 = 0

14. Answer :

D is the set of all zeros of the equation m² - 25 = 0

15. Answer :

E is the set of all zeros of the equation x² - 4x + 13 = 0

16. Answer :

F is the set of factors of the expression x² - 3x + 2

17. Answer :

G is the set of lettrs in the word "follow"

18. Answer :

H is the set of first 25 natural numbers which are divisible by 4

19. Answer :

I = {2, 4, 6, 8, 10}

I is the set of even numbers between 1 and 11

20. Answer :

J = {1, 3, 5, 7, 9}

J is the set of odd numbers between 0 and 10

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