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Let A and B be two sets having 4 and 7 e...

Let A and B be two sets having 4 and 7 elements respectively. Then write the maximum number f elements that `AuuB` can have:

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RD SHARMA ENGLISH-SETS-All Questions
  1. If A and B two sets containing 3 and 6 elements respectively and if mi...

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  2. If A={x in C : x^2=1}\ a n d\ B={x in C : x^4=1} , then write A-B\ a...

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  3. Let A and B be two sets having 4 and 7 elements respectively. Then ...

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  4. If A={(x ,\ y): y=1/x ,\ 0!=x in R}a n d\ B={(x , y): y=-x ,\ x in R...

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  5. If A={(x ,\ y): y=e^x ,\ x in R}a n d\ B={(x , y): y=e^(-x),\ x in R...

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  6. If A and B are two sets such that n(A)=20 ,\ n(B)=24\ a n d\ n(AuuB)=4...

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  7. If A and B are two sets such that n(A)=115 ,\ n(B)=326 ,\ n(A-B)=47 , ...

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  8. For any set A ,(A ')' is equal to a.A ' b. A c. varphi d. none of thes...

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  9. Let A and B be two sets in the same universal set. Then, A-B= A\ nnB ...

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  10. The number of all possible subsets of a set containing n elements ?

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  11. For any two sets A and B Ann(AuuB)= a.B b. A c. varphi d. none of the...

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  12. If A={1,3,5, B}a n d\ B={2,4} , then 4 in A b. {4}subA c. BsubA d. no...

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  13. The symmetric difference of A and B is equal to

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  14. The symmetric difference of A={1,2,3}a n d\ B={3,4,5} is a.{1,2} b. {...

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  15. For any two sets A and B, (A-B)uu(B-A)=? a.(A-B)uuA b. (B-A)uuB ...

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  16. Which of the following statement is false: A-B=AnnB b. A-B=A-(AnnB) c...

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  17. For any three sets A, B, and C Ann(B-C)=(AnnB)-(AnnC)

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  18. Choose the correct answer: 1. If A, B and C are three sets and U is th...

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  19. Let A={x : x in R ,\ x >4} and \ B={x in R : x<5} . Then AnnB= (a) ...

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  20. Let A and B be two sets such that n(A)=16 ,\ n(B)=14 , n(AuuB)=25. The...

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