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State in each case whether A ⊂ B or A ⊄ B. A = {x : xϵZ, x2 = 1}, B = {x : x ϵ N, x2 = 1} |
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Answer» A ⊄ B Explanation: we have, A = { -1,1} and B={1} Since, -1∈A and -1∉B thus A ⊄ B . |
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