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

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

A

{(-1, 1), (1, -1)}

B

{(-1, -1), (1, 1)}

C

{(-1, -1), (-1, 1), (1, -1), (1,1)}

D

{(-1, -1, -1), (-1, -1, 1), (-1, 1, -1), (-1, 1, 1), (1, -1, -1), (1, -1, 1), (1, 1, -1), (1, 1, 1)}

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The correct Answer is:
D
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AAKASH INSTITUTE-RELATIONS AND FUNCTIONS -Assignment (Section - A) Objective Type Questions (one option is correct)
  1. Number of relations that can be defined on the set A = {a, b, c} is

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

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

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

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

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

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

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

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

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  10. Which of the following is a function ?

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

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

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

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

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

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

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  17. Domain of the function f given by f(x) = 2-|x-5| is

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  18. The domain of the function (x^(2) + 8x + 9)/(x^(2) - 9x + 20) is

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  19. Range (परिसर) of f(x) = (3)/(2-x^(2)) is

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  20. Range of f(x) = |x-2| is

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