Home
Class 12
MATHS
Let f : RrarrR be defined as f (x) = 3x ...

Let `f : RrarrR` be defined as `f (x) = 3x` Choose the correct answer.

A

f is one-one onto

B

f is many-one onto

C

f is one-one but not onto

D

f is neither one-one nor onto.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    PSEB|Exercise Exercise|118 Videos
  • PROBABILITY

    PSEB|Exercise Exercise|140 Videos
  • THREE DIMENSIONAL GEOMETRY

    PSEB|Exercise Exercise|77 Videos
PSEB-RELATIONS AND FUNCTIONS-Exercise
  1. Let f:NrarrN be defined by, f(n) = {((n+1)/2,,if n is odd,,),(n/2,,if ...

    Text Solution

    |

  2. Let A=R-{3} and B=R-{1} . Consider the function f:A–>B. defined by f(x...

    Text Solution

    |

  3. Let f : RrarrR be defined as f (x) = 3x Choose the correct answer.

    Text Solution

    |

  4. Let f : (2, 3, 4, 5} rarr ( 3, 4, 5, 9} and g = (3, 4, 5, 9} rarr (7, ...

    Text Solution

    |

  5. Let f, g and h be functions from R to R. Show that (f + g)oh = foh + g...

    Text Solution

    |

  6. Find gof and fog, if f(x) = |x| and g(x) = |5x -2|

    Text Solution

    |

  7. Find gof and fog, if f(x) = 8x^3 and g(x) = x^(1/3)

    Text Solution

    |

  8. If f(x)=(4x-3)/(6x-4) ,x != 2/3 show that f@f(x) =xfor all x != 2/3.wh...

    Text Solution

    |

  9. State with reason whether following functions have inverse: f: {1,2,3,...

    Text Solution

    |

  10. State with reason whether following functions have inverse: g: {5,6,7,...

    Text Solution

    |

  11. State with reason whether following functions have inverse: h: {2,3,4,...

    Text Solution

    |

  12. Consider f : R → R given by f(x) = 4x + 3. Show that f is invertible. ...

    Text Solution

    |

  13. Consider f : R+rarr [4, oo) given byf (x) = x^2 + 4 Show that f is inv...

    Text Solution

    |

  14. Consider f : {1, 2, 3} rarr {a, b, c}, given by f (1) = a, f (2) = b ...

    Text Solution

    |

  15. Let f : X rarr Y be an invertible function. Show that the inverse of ...

    Text Solution

    |

  16. If f : R rarr R, be given by f(x) =(3 - x^3 )^(1/3) , then fo...

    Text Solution

    |

  17. Let f : R – {4/3}rarrR be a function defined as f (x) = 4x/(3x+4) T...

    Text Solution

    |

  18. Determine whether or not each of the definition of '*' given below giv...

    Text Solution

    |

  19. Determine whether or not each of the definition of '*' given below giv...

    Text Solution

    |

  20. Determine whether or not each of the definition of '*' given below giv...

    Text Solution

    |