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Let A = {a,b,{c,d},e}. Which of the following statements are false and why?(i) {c,d} ⊂ A (ii) {c, d} A (iii) {{c,d}} ⊂ A (iv) a A (v) a ⊂ A. (vi) {a,b,e} ⊂ A (vii) {a,b,e} A (viii) {a,b,c} ⊂ A (ix) ϕ A (x) {ϕ} ⊂ A |
Answer» (i) False {c,d} is not a subset of A but it belong to A. {c,d} ϵ A (ii) True {c,d} ϵ A (iii) True {c,d} is a subset of A. (iv) It is true that a belong to A. (v) False a is not a subset of A but it belongs to A (vi) True (vii) False {a,b,e} ⊂ A this is the correct form. (viii) False {a,b,c} is not a subset of A (ix) False ϕ is a subset of A. ϕ ⊂ A. (x) False |
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