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1. Sets
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Q11 of 145 Page 15

If A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 8} then find the universal set.

Elements of A+B+C = {1,3,5,2,4,6,0,8}

Thus, the universal set for A,B and C = {0,1,2,3,4,5,6,8}


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9

If A = {1, {2, 3}}, find P(A) and n {P(A)}.

10

If A = ϕ then find n{P(A)}.

12

Prove that A ⊆B, B⊆ C and C⊆ A ⇒A = C.

13

For any set A, prove that A⊆ϕ ⇔ A =ϕ

Questions · 145
1. Sets
1 1 1 1 1 1 1 1 1 1 1 1 1 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 6 1 1 1 1 1 1 1 1 1 2 3 3 3 3 3 4 5 5 5 5 5 5 5 5 5 5 5 6 1 1 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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