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If a in {2,4,6,9}a n d\ b in {4,6, 18 , ...

If `a in {2,4,6,9}a n d\ b in {4,6, 18 , 27}` , then from the set of al ordered pairs `(a , b)` such that `a` divides `b`

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Given,`a ∈ {2, 4, 6, 9}` and` b ∈ {4, 6, 18, 27}`
Since, 2 divides 4, 6, 18 and is also less than all of them
4 divides 4 and is also less than none of them
6 divides 6, 18 and is less than 18 only
9 divides 18, 27 and is less than all of them
Thus, ordered pairs `(a, b)` are `(2, 4), (2, 6), (2, 18), (6, 18), (9, 18)` and `(9, 27)`
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RD SHARMA-RELATIONS-Solved Examples And Exercises
  1. If the ordered pairs (x ,-1) and (5, y) belong to the set {(a , b): b=...

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  2. If (x+1,\ 1)=(3,\ y-2), find the value of x and y.

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  3. If a in {2,4,6,9}a n d\ b in {4,6, 18 , 27} , then from the set of al ...

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  4. if A={1,2} and B={1,3}, find AxxB\ a n d\ BxxA.

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  5. If A={1,2,3}a n d\ B={3,4}dot Find AxxB

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  6. If A={1,2,3}a n d\ B={2,4}, find AxxB

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  7. Let A and B be two sets such that n(A)=3\ a n d\ n(B)=2. if\ (x ,1)...

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  8. Let A={1,2,3,4} and\ R={(a , b): a in A , b in A ,\ a divides b} . W...

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  9. State whether each of the following statements are true or false. If t...

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  10. If A={1,2}, form the set AxxAxxAdot

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  11. If A={1,2,4}a n d\ B={1,2,3} , represent following sets - AxxB

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  12. If A={1,2,4}a n d\ B={1,2,3} , represent following sets - AxxB

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  13. If A={1,2,4}a n d\ B={1,2,3} , represent following sets - AxxA

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  14. If A={1,2,4}a n d\ B={1,2,3} , represent following sets - BxxB

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  15. If A={2,3},\ B={4,5},\ C={5,6},\ \ find Axx(BuuC)

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  16. Let A={1,2},\ B={1,2,3,4},\ C={5,6}a n d\ D={5,6,7,8} . Verity that: A...

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  17. Let A={1,2},\ B={1,2,3,4},\ C={5,6}a n d\ D={5,6,7,8} . Verity that: A...

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  18. If A={1,2,3},\ B={3,4},\ C={4,5,6},\ fin d\ : Axx(BnnC)

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  19. If A={1,2,3},\ B={3,4,5},\ C={4,6},\ fin d\ :(AxxB)nn(AxxC)

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  20. If A={1,2,3},\ B={1,2,3,4},\ C={4,5,6},\ fin d\ : Axx(BuuC)

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