# Example 6 (iii) - Chapter 1 Class 11 Sets (Term 1)

Last updated at Aug. 27, 2021 by Teachoo

Last updated at Aug. 27, 2021 by Teachoo

Transcript

Example 6 State which of the following sets are finite or infinite (iii) {x : x ∈ N and 2x –1 = 0} 2x – 1 = 0 x = 1/2 But x should be a natural number i.e. 1, 2, 3, 4, 5… It cannot be fraction. Thus, the given set has no elements. ∴ Given set = φ (Null set) Since the number of elements of a null set is 0, , the set is finite.

Examples

Example 1

Example 2 Important

Example 3

Example 4

Example 5 Important

Example 6 (i)

Example 6 (ii) Important

Example 6 (iii) You are here

Example 6 (iv)

Example 6 (v)

Example 7 Important

Example 8 (i)

Example 8 (ii)

Example 9 Important

Example 10

Example 11 Important

Example 12

Example 13 Important

Example 14

Example 15

Example 16

Example 17

Example 18 Important Deleted for CBSE Board 2022 Exams

Example 19 Deleted for CBSE Board 2022 Exams

Example 20 Deleted for CBSE Board 2022 Exams

Example 21 Deleted for CBSE Board 2022 Exams

Example 22 Important Deleted for CBSE Board 2022 Exams

Example 23

Example 24 Important

Example 25 Important

Example 26

Example 27 Important

Example 28

Example 29 Important

Example 30

Example 31

Example 32 Important

Example 33 Important

Example 34 Important

Chapter 1 Class 11 Sets (Term 1)

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.