44.Let A={x/-1<x<1} and B={x/x2-x=0}. Then A∩B=…….
A. ∅ B. {0} C.{x/0<x<1} D.{1} E. None of these
If P ,Q and R are three different empty sets represented by Venn diagram, which of the
following must be true?
1.Q∪P=P 2. Q∩R= ∅ 3. Q∪R=R
A. 1 only B. 2 only C. 3 only D. 1 and 2 only E. 1 and 3 only
Given that A⊂B,A∪B={2,3,5,6,8} and A∩B={2,5}, then A\B=……
A. {2,5} B. {6,8} C. {3,6} D. {3,8} E.{3,8,6}
Which of the following is always true?
A. P(P\Q)=∅ B. P(P\Q)=P C. P(P\Q)=Q D. P(P\Q)=P∪Q E. P(P\Q)=P∩Q
The shaded region of Venn diagram represents the subset
A. P∩(Q∪R)´ B.R(P∩Q∩R) C. Q´∩(P∪R) D. (P∩Q∩R)\R E.R´(P∪Q)
Functions
1.A relation from P to Q is described in the figure, the description in word is
1. “is less than” 2. “is half of” 3. “is twice of”
A. 1 only B. 2 only C. 3 only D. 1 and 2 only E. 1 and 3 only
2.Let P={1,2,3} and Q={3,6,9}. Let the relation from P to Q be R={(1,3),(2,6),(3,9)}. The set of order pair represents
1. “is less than” 2. “one third of” 3. “is a factor of”
A. 1 only B. 2 only C. 3 only D. 1and 2 only E. 1, 2 and 3
