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If A and B are two sets then AcupB=AcapB...

If A and B are two sets then A`cup`B=A`cap`B if and only if

A

A`sube`B

B

B`sube`A

C

A=B

D

A`!=`B

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The correct Answer is:
C
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NEW JOYTHI PUBLICATION-SETS-EXERCISE
  1. The set A={x:xinR, x^(2)=16 and 2x=6} is

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  2. If A and B are two sets then AcupB=AcapB if and only if

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  3. Let A and B be two sets. Then A-B equals

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  4. A set has n elements, then the total number of subsets of A is

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  5. If A, B, C are three sets such that AcupB=AcupC and AcapB=AcapC, then

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  6. Sets A and B have 3 and 6 elements respectively. What is the minimum n...

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  7. The number of proper subsets of {1,2,3} is

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

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  9. If A, B and C are non empty sets, then (A-B)cup(B-A) equals

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  10. A={1,2,3}, B={3,4}, C={4,5,6} then Acup(BcapC) is

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  11. In a class of 100 students, 55 have passed in mathematics and 67 have ...

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  12. Out of 800 boys in a school, 224 played cricket, 240 played hockey and...

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  13. In a college of 300 students, every student reads 5 newspapers and eve...

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  14. If A and B are two given sets then Acap (A capB)^(c) is equal to

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  15. Let n(U)=700, n(A)=200, n(B)=300 and n(AcapB)=100, then n(A^(c)capB^(c...

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  16. In Rule Method the null set is represented by

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  17. If A and B are not disjoint sets then n(AcupB) is equal to

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  18. Let A and B be two sets such that n(A)=0.16, n(B)=0.14, n(AcupB)=0.25 ...

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  19. In a city 20% of the population travels by car, 50% travels by bus and...

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  20. Given n(U)=20, n(A)=12, n(B)=10, n(AcapB)=4 where U is the universal s...

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