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Let A = {1,2,3}, B = {2,3,4}, C = {4,5,6...

Let `A = {1,2,3}, B = {2,3,4}, C = {4,5,6,7}" then " (A cup B) cup C ` =

A

`{2,3}`

B

`{1,2,3,4,5,6,7}`

C

`{2,4,6}`

D

`{1,3,5,7}`

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-SETS ( APPENDIX - 1)-EXERCISE
  1. If n(A) = 5, then n[P(A)] =

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  2. If a is any set such that n [P (A) ] = 64 , then n(A) =

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  3. Let A = {1,2,3}, B = {2,3,4}, C = {4,5,6,7}" then " (A cup B) cup C =

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  4. If A = {1,2,3,4}, B = {2,4,6,8}, C = {3,4,5,8}, " then" A cap B cap C ...

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  5. If A = {Rhombuses}, B = {Rectangles}, then A cap B =

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  6. If A = { x : x is a factor of 15} , B = { x : x is a factor of 18} , ...

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  7. If A = {Equilateral triangles }, B = {Right angled triangles } and C =...

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  8. If l, s are two straight lines and l cap s = Ø then l and sare

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  9. If AB cap CD = Ø, BC cap AD = Ø, then ABCD is

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  10. If AB cap CD = Ø, BC cap AD = Ø, then ABCD is

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  11. If A = {1,2,3,4}, B = {2,4,6,8} then A Delta B =

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  12. If A = {1,2,3}, B = {2,3,4}, then A - B =

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  13. If A = {1,2,3,4,5}, B = {0,2,4,6,8} then A Delta B =

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  14. Which of the following statements is true?

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  15. If A and B are disjoint nonempty sets then A - (A - B) is equal to

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  16. (A - B) cup (B - A) =

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  17. If A = {1,2,3,4}, B = {2,4,6,8}, C = {3, 4,5,8}," then " A - (B cap C)...

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  18. If A = {1,2,5,6}, B = {2,4,5}, C = {2,4,6,8}," then " A - (B cup C) =

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  19. If A = {3,5,7,9}, B = {1,3,5}, mu = {1,2,3,4,5,7,9}" then " (A cup B)'...

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  20. If X and Y are two sets, then X cap (Y cup X)^(c ) equals

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