Myaukkhin bes2

} then (A∪B)´ is
A.∅ B.{a} C. {0} D.R{a} E.R

1. If P={x\x3+x2-6x=0 and x≥0} then P=…………
   A.{2,0,-3} B.{2} C.{2,0} D.{-2} E.{2,-3}
   10.The graph of the solution set of the inequation 5-x≥1 is
   A. B. C. D. E.
   4 4 -4 -4 -4
   11.If A={a,b,c} , B={b,c,d} and C= {a,b,e} then A∩(B∪C)=……
   A. {a,d,e} B.{a,d} C.{a,c,d} D.{a,b,d} E.{a,b,c}
2. If x∈ (P∩Q), which of the following is (are) true?
   1.x∈P 2. x∈ 3. x∈(P∪ Q)
   A.1 only B. 2only C. 1and3 only D. 2and3 only E. 1,2 and 3
3. A={x\x is an integer,1<x<12} and
   B={x\x is a positive integer and less than 15 and x is multiple of3}then A∩B is
   A.{3,6,9,12} B{2,3,4,5,6,7,8,9,10,11} C.{6,9,12} D.{3,6,9,12,15} E.{3,6,9}
   14.If A≠B, which of the following is true?
   A. A∩B=B∩A B.A∪B=B∪A C.A∪A=A D.B∩B=B
   E.A\B=B\A
   15.If S={1,2,3,4,5,6,7} is the universal set ,P={1,2,3,4} and Q´={1,2,7}, then P∩Q=…..
   A. {1,2,3} B.{3,4} C.{3} D.{4} E.∅
   16.If P∪Q={x,y,z,u,v},P∩Q={z,u} ,P\Q={x,v} then Q\P=…….
   A.{y,z,u} B. {y} C.{x,u,v} D. ∅ E. None of these
   17.Given E={2,4} ,F={4,6,8,x} The value of x such that E\F=∅
   A.0 B.2 C.4 D.6 E.8
   18.Let n(P) denotes the number of elements in set P. Given that n(P)=7 and n(Q)=3
   the largest possible value of n(P∩Q) is
   A.10 B.9 C.7 D.4 E.3

1. Let n(P) denotes the number of elements in set P. Given that n(P)=2 and n(Q)=5
   the smallest possible value of n(P∩Q) is
   A.5 B.2 C.3 D.7 E.8
   20.Which of the following is (are) true?
   1. {x\x2-5x+6=0}⊂{x\2≤x≤4}
      2.{x/x is an even number}∩{x\x is an odd number}
      3.A∪A´=S
      A.1 only B. 2 only C.3 only D . 1,2 and 3 E. None of these
      21.How many subsets of A\B if A={2,3,5,8} and B={x\x3-8x+15=0}
      A.4 B.8 C.16 D. 32 E.2
2. If A={a,b,c} and B={a,b,c,d,e} , then the number of subsets of A∩B is
   A.4 B.8 C.16 D. 32 E.2