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Let R = {(1, 3), (2, 2), (3, 2)} and S =...

Let R = {(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3)} be two relations on set A = {(1, 2, 3)}. Then, SoR is equal

A

{(2, 3), (3, 2), (2, 1)}

B

{(1, 3), (2, 2), (3, 2), (2, 1), (2, 3)}

C

{(3, 2), (1, 3)}

D

{(2, 3), (3, 2)}

Text Solution

Verified by Experts

The correct Answer is:
A
`R={(1, 3),(2, 2),(3, 2)}`
`S={(2, 1),(3, 2),(2, 3)}`

RoS = {(2, 3), (2, 2), (3, 2)}
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ARIHANT MATHS-SETS, RELATIONS AND FUNCTIONS -Exercise (Single Option Correct Type Questions)
  1. If A and B are two sets, then A nn (A uu B) equals

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  2. If R is a relation from a set A to a set B and S is a relation from B ...

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  3. Let R = {(1, 3), (2, 2), (3, 2)} and S = {(2, 1), (3, 2), (2, 3)} be t...

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  4. If X and Y are two sets, then X nn (Y nn X)' equals

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  5. For real numbers x and y , define x\ R\ y iff x-y+sqrt(2) is an irrati...

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  6. Let f(x)=(x+1)^2-1, xgeq-1. Then the set {x :f(x)=f^(-1)(x)} is {0,1,(...

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  7. The number of elements of the power set of a set containing n elements...

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  8. Which one of the following is not true?

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  9. If A = {1, 2, 3} and B = {3, 8}, then (A uu B) xx (A nn B)is

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  10. Let A = {p, q, r}. Which of the following is an equivalence relation ...

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  11. Let A = {x : x is a multiple of 3} and B = {x : x is a multiple of 5),...

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  12. Let A = {1, 2, 3}, B = {3, 4} and C = {4, 5, 6}, the Auu(BnnC) is

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  13. Let A = {x, y, z), B = {u, v, w} and f : A rarr B be defined by f(x) =...

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  14. If A = {2, 4) and B = {3, 4, 5), then (A nn B) xx (A uu B) is

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  15. In the set X = {a, b, c, d}, which of the following functions in X?

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  16. The composite mapping fog of the maps f:R to R , f(x)=sin x and g:R to...

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  17. Which of the following is the empty set

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  18. In order that a relation R defined on a non-empty set A is an equivale...

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  19. Let A={p , q , r , s}\ a n d\ B={1,2,3}dot Which of the following rela...

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  20. For n,mepsilonN,n|m means that n is a factor of m then relation | is

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