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Consider the sets φ, A = {1, 3}, B{1, 5, 3}, C = {1, 3, 5, 7, 9}. Inset the symbol ⊂ or ⊄ between each of the following pair of sets: (i) φ……… B(ii) A … B(iii) A… C(iv) B… C. |
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Answer» (i) φ ⊂ B, as empty set is a subset of every set (ii) A ⊄ B, ∵ 3 ∈ A ⇒ but 3∉ B (iii) A⊂ C, as 1, 3 ∈ A ⇒1,3 ∈ C (iv) B ⊂ C, as 1, 5, 9∈ A ⇒ 1, 5, 9 ∈ C. |
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