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Which of the following is an empty set?...

Which of the following is an empty set?

A

`{x:x^2-1=0, x in R}`

B

`{x:x^2+1=0, x in R}`

C

`{x:x^2-4=0, x in R}`

D

`{x:x^2-x-2, x in R}`

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JBD PUBLICATION-SETS-EXAMPLE
  1. Which of the following is an empty set?

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  2. Write the following as intervals : {x : x in R,-4 < x le 6}

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  3. Write the following as intervals : {x : x in R,-12 < x < -10}

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  4. Write the following as intervals: {x:x in R, 0 le x le 7}

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  5. Write the following as intervals: {x:x in R, 1 le x le 4}

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  6. Mark the following subsets of set R of real numbers on the number line...

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  7. Mark the following subsets of set R of real numbers on the number line...

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  8. Mark the following subsets of set R of real numbers on the number line...

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  9. Mark the following subsets of set R of real numbers on the number line...

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  10. Write the following interval in set-builder form : (-3,0)

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  11. Write the following interval in set-builder form : [6,12]

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  12. Write the following interval in set-builder form : [6,12]

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  13. Write the following intervals in the set builder form and mark them on...

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  14. Which of the following pairs of sets are disjoint? A=[a,e,I,o,u], B=[c...

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  15. Which of the following pairs of sets are disjoint:- {1, 2. 3, 4} and {...

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  16. Prove that the following pairs of sets are disjoint A={x:x is an even ...

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  17. Let A = { a, b }, B = {a, b, c}. Is A sub B ? What is A uu B?

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  18. A and B are two sets such that AsubB, then what is AcupB.

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  19. Is it true that for any sets A and B, P(A) uu P(B) = P(A uu B)? Justif...

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  20. Using properties of sets, show that A uu ( A nn B)=A

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  21. Using properties of sets, show that A nn (A uu B)=A

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