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If A = {3, 6, 9, 12 , 15 , 18 , 21}, B =...

If `A = {3, 6, 9, 12 , 15 , 18 , 21}`, `B = { 4, 8, 12 ,16 , 20 }`,`C = { 2, 4, 6, 8, 10 , 12 , 14 , 16 }`, `D = {5, 10 , 15 , 20 }`; find
(i) `A - B`
(ii) `A - C`
(iii) `A - D`

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To solve the problem, we need to find the differences between the sets A, B, C, and D as specified in the question. Let's go step by step. ### Given Sets: - \( A = \{3, 6, 9, 12, 15, 18, 21\} \) - \( B = \{4, 8, 12, 16, 20\} \) - \( C = \{2, 4, 6, 8, 10, 12, 14, 16\} \) - \( D = \{5, 10, 15, 20\} \) ...
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