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If A=set of letters of the word DELHI an...

If A=set of letters of the word `DELHI` and B= set of the words `DOLL` find
15.` A cup B`

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The correct Answer is:
`{D,E,L,H,I,O}
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CBSE COMPLEMENTARY MATERIAL-SETS AND FUNCTIONS-LONG ANSWER TYPE QUESTIONS
  1. If A=set of letters of the word DELHI and B= set of the words DOLL fin...

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  2. In a town of 10,000 families, it was found that 40% of the families bu...

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  3. In a town of 10,000 families, it was found that 40% of the families bu...

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  4. In a twon of 10,000 families it was found that 40% families buy newspa...

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  5. In a town of 10,000 families it was found that 40% family buy newspape...

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  6. In a town of 10,000 families it was found that 40% family buy newspape...

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  7. In a town of 10,000 families it was found that 40% family buy newspape...

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  8. In a town of 10,000 families, it was found that 40% of the families bu...

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  9. In a group of 84 persons, each plays at least one game out of three vi...

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  10. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  11. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  12. In a class, 18 students took Physics, 23 students took Chemistry and 2...

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  13. Using properties of sets and their complements prove that (i)(A cup ...

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  14. Using properties of sets and their complements prove that (ii) A-(A ...

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  15. For any 3 sets A, B and C, prove that : (i) A-(B cupC)=(A-B)cap(A-C)...

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  16. For any 3 sets A, B and C, prove that : (i) A-(B cupC)=(A-B)cap(A-C)...

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  17. Using properties of sets and their complements prove that (v) A cap (...

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  18. If A is the set of all divisors of the number 15. B is the set of prim...

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  19. Two finite sets have m and n elements. The total number of subsets of ...

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  20. If A={4^(n)-3n-1:n in N) and B={9(n-1):n in N} then

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  21. A survey shows that 63% of the people watch a news channal whereas ...

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