Q48 of 58 Page 12

Fill in the blanks

Power set of the set A = {1, 2} is ______________.

{{1}, {2}, {1, 2}, Φ}

Given: set A = {1, 2}


To find: power set of A


A power set is a set of all the subsets of set A


Subsets of a are {1}, {2}, {1, 2}, Φ


Hence, power set of A = {{1}, {2}, {1, 2}, Φ}


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46

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If A and B are finite sets such that A ⊂ B, then n (A ∪ B) = ______________.

 47

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If A and B are any two sets, then A – B is equal to ______________.

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Given the sets A = {1, 3, 5}. B = {2, 4, 6} and C = {0, 2, 4, 6, 8}. Then the universal set of all the three sets A, B and C can be ______________.

 50

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If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {1, 2, 3, 5}, B = {2, 4, 6, 7} and C = {2, 3, 4, 8}. Then


(i) (B ∪ C)′ is ______________.


(ii)(C – A)′ is ______________.