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The relation R from A to B is given as R...

The relation R from A to B is given as `R = {(1, 2), (2, 5), ((1)/(2), 7)}`. The domain of R is

A

{1, 2}

B

{2, 5, 7}

C

`{1, 2, (1)/(2)}`

D

`{1, 2, 5, (1)/(2), 7}`

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The correct Answer is:
C
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AAKASH INSTITUTE-RELATIONS AND FUNCTIONS -Assignment (Section - A) Objective Type Questions (one option is correct)
  1. If A = {5, 7, 8} and B = {9, 11}, then

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  2. If A and B are any two sets, then

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  3. The relation R from A to B is given as R = {(1, 2), (2, 5), ((1)/(2), ...

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  4. The relation R from A to B is given as R = {(5, 3), (2, 7), (8, 5)}. T...

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

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

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

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

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

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

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

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

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

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

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

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  16. Which of the following is a function ?

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

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

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

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

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