Question

Module 1: Introduction to s
5. Which of the following is NOT a well - defined set?
A. A set of well-written books
C. A set of letters in the alphabet
B. A set of primary colors
D. A set of months in a year
If set A = {5,7,9} and set B = {7,9}, what is A - B?
A. {5}
B. {7}
C. {8}
D. (9)
Which of the following sets is a null set?
A. A set of natural numbers
C. A set of odd integers between 0
B. A set of days in a week
D. A set of college students in Dal
For numbers 8 and 9, refer to the given sets below.
U ​

Answer 1

5.A

6.A

7.A

Explanation:

because its correct