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Write the number of elements in the powe...

Write the number of elements in the power set of null set.

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RD SHARMA ENGLISH-SETS-All Questions
  1. In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea...

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  2. In a survey of 100 students, how many of students studying the various...

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  3. Write the number of elements in the power set of null set.

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  4. Let A={x ; x in N ,\ x is a multiple of 3} and B={x : x in N\ a n d\...

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  5. If A and B two sets containing 3 and 6 elements respectively and if mi...

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

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  8. 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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  9. 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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  10. 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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  11. If A and B are two sets such that n(A)=115 ,\ n(B)=326 ,\ n(A-B)=47 , ...

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

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

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

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

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  16. 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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  17. The symmetric difference of A and B is equal to

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

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

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

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