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 : x^{2} - 9 = 0}
Question 13 :
C = {y : y^{2} - 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}
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 x^{2} - 9 = 0
13. Answer :
C is the set of all zeros of the equation y^{2} - 5y + 6 = 0
14. Answer :
D is the set of all zeros of the equation m^{2} - 25 = 0
15. Answer :
E is the set of all zeros of the equation x^{2} - 4x + 13 = 0
16. Answer :
F is the set of factors of the expression x^{2} - 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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