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Sets A and B have 3 and 6 elaments respe...

Sets A and B have 3 and 6 elaments respectively. What can be theminimum number of elements in `A uu B`

A

3

B

6

C

9

D

18

Text Solution

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The correct Answer is:
B
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OBJECTIVE RD SHARMA ENGLISH-SETS-Exercise
  1. if A is a finite set having n elements , then P(A) has

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  2. if A ={phi ,{phi}}, then the power set of A is

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

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  4. two finite sets have m and n elements . The total number of subs...

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  5. if X and Y are two sets , then X cap (Y cup X)'equals

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  6. Let A = {x : x is a multiple of 3} and B = {x : x is a multiple of 5),...

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  7. Given the sets A={1,2,3}, B={3,4}, C={4,5,6}, then find Auu(BnnC).

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  8. Let A and B be two non- empty subsets of a set X such that A is not a ...

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  9. Let U be the universal set for sets A and B such that n(A) =200 ...

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

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  11. From 50 students taking examinations in mathematics, physics and chemi...

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  12. Let Z be the set of all integers and A={(a,b):a^(2)+3b^(2)=28 ...

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  13. in a class of 35 students , 17 have taken Mathematics , 10 have ta...

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  14. if A={(x,y):y=(4)/(x),xne0}and B= {(x,y):x^(2)+y^(2)=8,x,yin R},t...

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  15. If A = {x : x is a multiple of 4} and B = {x : x is a multiple of 6}, ...

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  16. if A={(x,y):x^(2)+y^(2)=4,x,y in R } and B={(x,y): x^(2)+y^(2)= 9,x,...

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  17. if A={(x,y):x^(2)+y^(2)=4, x,y in R }and B={(x,y):Y=|x|, x , y in ...

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  18. If A ={ theta : 2cos^2 theta + sintheta <=2} , and B = {theta: pi/2<=t...

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  19. in rule method the null set is resresented by

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  20. If A and B are two given sets, then Ann(AnnB)^(@) is equal to :

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