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Union,of {1, 3,5, 7,..} and {2, 4, 6, 8,...

Union,of {1, 3,5, 7,..} and {2, 4, 6, 8,..} is

A

a)N

B

b)R

C

c)Q

D

d)Z.

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Let X = {1, 3, 5, 7} and Y={2, 4, 6, 8}. If f be the rule associating elements of X to elements of Y, such that f(1) = 4, f(3) = 2, f(5) = 8, f(3) = 6, f(7) = 4. State whether f defines a function of X into Y or not.

Let A = { 1, 2, 3, 4, 5, 6}, B = { 2, 4, 6, 8 } . Find A – B and B – A .

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = {2, 4, 6, 8} and B = { 2, 3, 5, 7} . Verify that (A ∩ B)′ = A′ ∪ B′

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = {2, 4, 6, 8} and B = { 2, 3, 5, 7} . Verify that (A ∪ B)′ = A′ ∩ B′

Given the sets A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 6, 8} , which of the following may be considered as universal set (s) for all the three sets A, B and {0,1,2,3,4,5,6,7,8,9,10}

Given the sets A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 6, 8} , which of the following may be considered as universal set (s) for all the three sets A, B and {1,2,3,4,5,6,7,8}

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find A'

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find B'

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find (A ∪ C)′

Let U = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, A = { 1, 2, 3, 4}, B = { 2, 4, 6, 8 } and C = { 3, 4, 5, 6 } . Find (A ∪ B)′

UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 7-EXERCISE
  1. Union,of {1, 3,5, 7,..} and {2, 4, 6, 8,..} is

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  2. Z is a complex number. If I Z l = 4 and arg(Z)=(5pi)/6,then the value ...

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  3. In the expansion of (2P+3/P)^10,the middle term will be

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  4. In an AP,if the rth term is 2r-7, then,the 4th term will be

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  5. Thestraight line sqrt3y-3x=3 makes an angle with x axis is

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  6. The equation of diameter to the circle x^2+y^2-6x+2y=15,which-passes, ...

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  7. IF x^2+y^2=4,then the, value of yy' +x.is

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  8. The'value of lim(xrarr0) 1/xsin^-1((2x)/(1+x^2))is

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  9. A and B are two independent events.if P(A)=3/5,P(AcapB)=4/9the value o...

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  10. The mean of square of 1st n natural number is

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  11. show that (A-B)capB=phi

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  12. A relation P defined as :P={(x,y):2x+3y=18,x,y in N} ,find the domain ...

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  13. Find the value of :(8 sin ^3 10^@-6sin10^@)

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  14. If sinA/3=sinB/3=sinC/4then show that cos C=1/9

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  15. Value of i^n+i^(n+1)+i^(n+2)+i^(n+3)(where i=sqrt-1)

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  16. If, the number of-diagonals of a- polygon is 44. Find the number of si...

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  17. 'Prove that the co-efficient of x^n of the expansion of (1+x)^(2n) is...

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  18. The sum of P terms of an AP is P^2. Find the common difference.

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  19. Find the co-ordinate of the point which is equidistance from (alpha, 0...

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  20. Calcualte the angle between the straight linesx+sqrt3 y+2=0and y+5=0

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