25-08-2017, 09:32 PM
Maths Question Paper Theory of Sets
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Choose the correct answer
1.If A={5,{5,6},7},which of the following is correct?
(A){5,6}EA (B){5}EA ©{7}EA (D){6}EA
2.If X={a,{b,c},d},which of the following is a subset of X?
(A){a,b} (B){b,c} ©{c,d} (D){a,d}
3.which of the following statements are true?
(i) For any set A,A is a proper subset of A
(ii) For any set A, is a subset of A
(iii) For any setA,A is a subset of A
(A)(i)and(ii) (B)(ii)and(iii) ©(i)and(iii) (D)(i)(ii)and(iii)
4.If a finite set A has m elements, then the number of non-empty proper subsets of A is
(A)2m (B)2m -1 ©2m-1 (D)2(2m-1 -1)
5.The number of subsets of the set {10,11,12} is
(A)3 (B)8 ©6 (D)7
6.Which one of the following is correct?
(A){x:x2 =1,xE Z}= (B) =0 © ={0}