Home
Class 12
MATHS
Which of the following is a function ?...

Which of the following is a function ?

A

`{(x, y) : y = |x|, x, y in R}`

B

`{(x,y) : y^(2) = x , x, y in R}`

C

`{(x, y) : x^(2) + y^(2) = 1, x, y in R}`

D

`{(x, y) : x^(2) - y^(2) = 1, x, y in R}`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    AAKASH INSTITUTE|Exercise Assignment (Section - B) Objective Type Questions (one option is correct)|87 Videos

  • RELATIONS AND FUNCTIONS

    AAKASH INSTITUTE|Exercise Assignment (Section - C) Objective Type Questions (More than one option are correct)|17 Videos

  • RELATIONS AND FUNCTIONS

    AAKASH INSTITUTE|Exercise Try Yourself|70 Videos

  • PROBABILITY

    AAKASH INSTITUTE|Exercise ASSIGNMENT SECTION-J (aakash challengers questions)|13 Videos

  • SEQUENCES AND SERIES

    AAKASH INSTITUTE|Exercise Assignment (SECTION - J) Aakash Challengers|12 Videos

Similar Questions

Explore conceptually related problems

Which of the following is the function of adrenalline ?

Which of the following is the function of lymph ?

Which of the following is the function of insulin ?

Which of the following is the function of enterogastrone?

Which of the following is the function of vacuole?

Which of the following is the function of heartwood?

Which of the following is/are functions of water?

AAKASH INSTITUTE-RELATIONS AND FUNCTIONS -Assignment (Section - A) Objective Type Questions (one option is correct)
  1. Let X be any non-empty set containing n elements, then the number of r...

    Text Solution

    |

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

    Text Solution

    |

  3. Which of the following is a function ?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  14. Range of f(x) = |x-3| is

    Text Solution

    |

  15. Range [परिसर] of f(x) = (1)/(2x-1) is

    Text Solution

    |

  16. Range of f(x) = x^(3) is

    Text Solution

    |

  17. The possible value(s), the expression (|x-5|)/(x-5) can take is

    Text Solution

    |

  18. If f(x) = 3x + 1 and g(x) = x^(2) - 1, then (f + g) (x) is equal to

    Text Solution

    |

  19. If f(x) = 7x + 9 and g(x) = 7x^(2) - 3, then (f - g)(x) is equal to

    Text Solution

    |

  20. If f(x) is an identity function, then f(5) is equal to

    Text Solution

    |