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Let U = {1, 2, 3, 4, 5, 6}, A = {1,4} and B = {2,3,5}. Find B’.(a) {2,3,5,6}(b) {1,2,3}(c) {1,4,6}(d) {1,2,3,4,5,6}I have been asked this question during an online exam.Question is taken from Complement of a Set topic in division Sets of Mathematics – Class 11

Answer»

Right choice is (c) {1,4,6}

To explain: COMPLEMENT of a set A is a set which contains elements of U which are not the elements of B. So, B’ = U – B = {1, 2, 3, 4, 5, 6} – {2,3,5} = {1,4,6}.


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