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(i) If A and B sets have 2 and 5 element...

(i) If A and B sets have 2 and 5 elements respectively, then find the minimum and maximum number of elements in `A cup B`
(ii) If A and B have 4 and 6 elements respectively, then find the minimum and maximum number of elements in `A cap B`.

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The correct Answer is:
(i) Minimum elements in `A cup B = 5` and maximum elements = 7
(ii) Minimum elements in `A cap B = 0` and maximum elements = 4.
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NAGEEN PRAKASHAN ENGLISH-SETS-Exercise 1D
  1. (i) If A and B sets have 2 and 5 elements respectively, then find the ...

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  2. If A={1,2,3,4},B={3,4,5},C={1,5,6}, then findof the following : (i) ...

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  3. If A={x:x=3n,n in N} and B={x:x=4n,n in N}, then find A cap B.

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  4. If A = {1,2,3,4},B={2,4,6,8} and C={3,4,5,6}, then find each of the fo...

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  5. If A and B are two sets, then find (A cap B) cup B.

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  6. If A and B are two sets such that A sube B, then find (i) A cup B ...

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  7. If A = {1,2,3,4,5},B={2,4,6,8} and C={3,6,7,8}, then show that : (i)...

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  8. (i) If aN={2x:x in N}, then find 3N cap2N. (ii) If A = {2,3,4},B={4,...

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  9. If A={x:xle 4,x in N},B={x:xle 8, x in N} and C={x:x in N,2 lt x lt 7}...

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  10. If U={11,12,13,14,....,20},A={11,12,13,14} and B={14,16,18,20}, then f...

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  11. If A={1,2,3}and B={3,5,7}, the find A oplusB.

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  12. Find (A-B)cup(B-A) from each of the following : (i) A={x,y,z)," "...

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  13. If A={2,4,6,8,10},B={3,4,5,6}andC={5,6,7,8}, the show that : (i) B o...

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  14. For any set A show that A oplus A = phi.

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  15. If A = {x : x is a natural number} B = {x : x is an even natural num...

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  16. Draw the Venn diagram for each of the following : (i) (A cap B)' (...

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  17. (i) If A={x:x^(2)-2x+1=0}and B={x:x^(3)-x^(2)-2x=0}, then find A cupB ...

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  18. If A and B are two sets, then prove that : (i) (A-B)cupB=AhArrB sube...

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  19. For any three sets A,B and C, prove that, A-(BcapC) = (A-B) cup(A-C)...

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  20. If A,B and C are three sets such that A cup B = C and A cap B = phi, t...

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