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If A={1,2,3,4,5} andB={2,3,6,7}, then th...

If `A={1,2,3,4,5} andB={2,3,6,7},` then the number of elements in the set `(AxxB)cap(BxxA)` is

A

18

B

8

C

4

D

0

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C
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ML KHANNA-CONCEPTS OF SET THEORY -Problem Set (1)
  1. If A={2,4}andB={3,4,5}, then (AnnB)xx(AuuB) is

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  2. If A={1,2,3}andB={3,8}, then (AuuB)xx(AnnB) is

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  3. If A={1,2,3,4,5} andB={2,3,6,7}, then the number of elements in the se...

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  4. If A={a,b,c},B={c,d,e},C={a,d,f}, then Axx(BuuC) is

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  5. A and B are teo sets having 3 and 5 elements respectively and having 2...

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  6. Sets A and B have 3 and 6 elaments respectively. What can be theminimu...

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  7. Suppose A1,A2….. A(30) are thirty sets each having 5 elements and B1B2...

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  8. Consider the set A of all determinants of order 3 with entries 0 or 1 ...

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  9. Two finite sets have m and n elements. The total number of subsets of ...

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  10. Let A={theta:2"cos"^(2)theta+"sin"thetale2}and B={theta:pi//2letheta...

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  11. If X={4^(n)-3n-1n in N} and Y={9(n-1):n in N} , then X uu Y is equal t...

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  12. The sets S and E are defined as given below: S={(x,y): |x-3|lt1and|y...

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  13. If A, B are two sets, prove that AuuB=(A-B)uu(B-A)uu(AnnB). Hence or...

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  14. Let n(U)=700, n(A)=200,n(B)=300 and n(AnnB)=100, then find n(A'nnB')

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  15. In a group of 1000 people, there are 750 who can speak Hindi and 400 w...

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  16. Of the members of three athletic teams in a certain school, 21 are in ...

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  17. An investigator interviewed 100 students to determine their preference...

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  18. In a survey of 200 students of a school, it was found that 120 study...

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  19. A survey shows that 63% of the Indians like cheese, whereas 76% like a...

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  20. In a pollution study of 1500 Indian rivers the following data were rep...

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