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Let A be a set represented by the ...

Let A be a set represented by the squares of natural numbers and x,y are any two elements of A then

A

`x-y=in A `

B

`xy " " in A`

C

`x+yin A`

D

`(x)/(y)in A`

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The correct Answer is:
B
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OBJECTIVE RD SHARMA ENGLISH-SETS-Exercise
  1. Let Z be the set of all integers and A={(a,b):a^(2)+3b^(2)=28 ...

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

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

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  5. 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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  6. 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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  7. If A ={ theta : 2cos^2 theta + sintheta <=2} , and B = {theta: pi/2<=t...

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  8. in rule method the null set is resresented by

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

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

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  11. If A = {x : x is a multiple of 3} and, B ={x : x is a multiple of 5}, ...

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  12. For any three sets A1,A2, A3, let B1=A1, B2 = A2-A1 and B3 = A3-(A1uuA...

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  13. In a city 20% of the population travels by car, 50% by bus and 10% tra...

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  14. about to only mathematics

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  15. Two finite sets have m and n elements respectively . The total number ...

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  16. In a class of 175 students the following data shows the number of stu...

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  17. if A={1,2,3,4,5},B={2,4,6}and C={3,4,6}, then (Acup B) cap C is

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  18. in a class of 45 student, 22 can speak hindi and 12 can speak E...

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  19. In a certain town 25% families own a cellphone, 15% families own a sco...

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  20. Let A be a set represented by the squares of natural numbers ...

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