If A = {-3, -2, 1, 4} and B = {0, 1, 2, 4}, find (i) A – B (ii) B – A.

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Solution

A = {-3, -2, 1, 4} and B = {0, 1, 2, 4}

(i) A – B = {-3, -2, 1, 4} – {0, 1, 2, 4}
= {-3, -2}

(ii) B – A = {0, 1, 2, 4} – {-3, -2, 1, 4}
= {0, 2}

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