



Examples
Example 2 Important
Example 3
Example 4
Example 5 Important
Example 6 (i)
Example 6 (ii) Important
Example 6 (iii)
Example 6 (iv)
Example 6 (v)
Example 7 Important
Example 8 (i)
Example 8 (ii)
Example 9 Important You are here
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
Last updated at Jan. 27, 2020 by Teachoo
Example 9 Consider the sets φ, A = { 1, 3 }, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets: φ . . . B Null set is a subset of every set So, φ is a subset of every set. ∴ φ ⊂ B ⊂ - is a subset ⊄ - is not a subset Example 9 Consider the sets φ, A = { 1, 3 }, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets: (ii) A . . . B 3 is in set A but not in set B i.e. 3 ∈ A but 3 ∉ B. So, A is not a subset of B ∴ A ⊄ B ⊂ - is a subset ⊄ - is not a subset A ⊂ B if all elements of A are in B Example 9 Consider the sets φ, A = { 1, 3 }, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets: (iii) A . . . C 1 & 3 are in set A and 1 & 3 are also in set C So, all elements of set A is in set C So, A is a subset of C ∴ A ⊂ C ⊂ - is a subset ⊄ - is not a subset A ⊂ B if all elements of A are in B Example 9 Consider the sets φ, A = { 1, 3 }, B = {1, 5, 9}, C = {1, 3, 5, 7, 9}. Insert the symbol ⊂ or ⊄ between each of the following pair of sets: (iv) B . . . C Element 1 , 5, 9 are in set B, and are also in set C So, all elements of set B are in set C So, B is a subset of C ∴ B ⊂ C ⊂ - is a subset ⊄ - is not a subset A ⊂ B if all elements of A are in B