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If n (A) =3 ,n(3)=6 and A sube B .Then ...

If n (A) =3 ,n(3)=6 and `A sube B` .Then the number of elements in `A cup B` is equal to

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`6`
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RESONANCE-FUNDAMENTAL OF MATHEMATICS-Exercise
  1. If A={x : -3 lt x lt 3, x in Z} then find the number of subsets of A .

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  2. Find Power set of the set A={phi,{phi}}.

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  3. If n (A) =3 ,n(3)=6 and A sube B .Then the number of elements in A cu...

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  4. Given the sets A={1,2,3}, B={3,4}, C={4,5,6}, then find Auu(BnnC).

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  5. Let A={x : x in R,-1 lt x lt 1}, B={x : x in R, x le0 or x ge 2} and A...

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  6. Find the smallest set A such that Auu{1,2}={1,2,3,5,9}

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  7. If A={2,3,4,8,10}, B={3,4,5,10,12}, C={4,5,6,12,14} then find (AnnB)uu...

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  8. Let U={1,2,3,4,5,6,7,8,9,10}, A={1,2,5}, B=(6,7}, then show that AnnB'...

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  9. If A=(x : x=4n+1,nle5,n in N} and B={3n : n le 8, n in N}, then find (...

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  10. If aN = {ax|x in N} and bN nn cN = dN, where b,c epsilon N, then

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

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  12. In a group of 1000 people, there are 750 people, who can speak Hindi a...

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  13. A class has 175 students. The following data shows the number of stude...

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  14. 31 candidates appeared for an examination, 15 candidates passed in Eng...

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  15. In a survery, it was found that 21 persons liked product A, 26 liked p...

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  16. Draw the graph of followin function {:((i), y=4x^(3)-30x^(2)+72x-55,...

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  17. Find the number of solution of the following equation x^(4)-6x^(2)-8x-...

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  18. Find the range of lambda for which equation x^3+x^2-x-1-lambda=0 has 3...

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  19. Solve the following rational in equalities (i) ((x-1)(x+2))/((x-3)(x...

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  20. Find the number of positive integral value of x satisfying the inequal...

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