A. {x\8≥x≥4} B. {x\8≥x>4} C. {x\8≤x≤4}
D. {x\8≤x<4} E.Non of these
7.If P=[2,7) and Q=(3,7], then P∩Q =………..
A.(3,7] B.(2,7] C.(3,7) D.[2,7] E.(4,7)
8.Let S=R if A={x\x<a},B={x\x>a} then (A∪B)´ is
A.∅ B.{a} C. {0} D.R{a} E.R
- 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} - 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 - 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 universa
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