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Let R be relation from a set A to a set ...

Let R be relation from a set A to a set B, then (1)`R= AuuB` (2)`R=AnnB` (3)`RsubeA`x`B` (4)`RsubeB`x`A`

A

`R sub B xx A`

B

`R sub A xx B`

C

`R = A xx B`

D

`A xx B sub R`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE-RELATIONS AND FUNCTIONS -Assignment (Section - A) Objective Type Questions (one option is correct)
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  2. The relation R from A to B is given as R = {(5, 3), (2, 7), (8, 5)}. T...

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  3. Let R be relation from a set A to a set B, then (1)R= AuuB (2)R=AnnB (...

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  4. If A = {2, 4, 6}, then domain of the relation R defined on A is

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  5. Number of relations that can be defined on the set A = {a, b, c} is

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  6. If A and B are two sets such that A xx B = phi, then which of the foll...

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  7. If A = {-1, 1}, then A xx A is equal to

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  8. If A = {x(!) , y(1), z(1)} and B = {x(2), y(2)}, then the number of re...

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  9. If f is a function such that f(0) = 2, f(1) = 3, f(x+2) = 2f(x) - f(x ...

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  10. If f(x) = (x-1)/(x+1), then f(2) is equal to

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  11. If f(x+4) = x^(2) - 1, then f(x) is equal to

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  12. Let X be any non-empty set containing n elements, then the number of r...

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  13. Let A = {2, 3, 5}, B = (10, 12, 15}, then which of the following is a ...

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  14. Which of the following is a function ?

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  15. If f : R rarr R be defined as f(x) = 2x + |x|, then f(2x) + f(-x) - f...

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  16. Let n(A) = m and n(B) = n. The total number of non-empty relations tha...

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  17. If f(x) = ax + b, where a and b are integers, f(-1) = -5 and f(3) = 3,...

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  18. Domain of the functions f defined b f(x) = (5-x)/(x-5) is

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  19. Domain of the function f defined by f(x) = sqrt(x-1) is given by

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  20. Domain of the function defined by f(x) = (x^(2) + 2x +1)/(x^(2) - x - ...

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