Home
Class 12
MATHS
Let f: RrarrR be a function defined by f...

Let f: `RrarrR `be a function defined by `f(x)=(2x^2-x+5)/(7x^2+2x+10)` then f is

A

one -one but not onto

B

onto but not one-one

C

onto as well as one-one

D

neither onto nor one-one

Text Solution

Verified by Experts

The correct Answer is:
D

NA
Promotional Banner

Topper's Solved these Questions

  • RELATION, FUNCTION & ITF

    RESONANCE|Exercise INTEGER_TYPE|21 Videos
  • RELATION, FUNCTION & ITF

    RESONANCE|Exercise MCQ_TYPE|31 Videos
  • RELATION, FUNCTION & ITF

    RESONANCE|Exercise MATCH THE COLUMN|5 Videos
  • NUMBER THEORY

    RESONANCE|Exercise Exercise -2 (PART - II)|4 Videos
  • SEQUENCE & SERIES

    RESONANCE|Exercise EXERCISE -2 (PART-II : PREVIOUSLY ASKED QUESTION OF RMO)|3 Videos

Similar Questions

Explore conceptually related problems

Let f:R rarr Rbe a function defined by f(x)=(2x^(2)-x+5)/(7x^(2)+2x+10) then fis

Let f:R rarr R be a function defined by f(x)=(x^(2)+2x+5)/(x^(2)+x+1) is

Let f:R rarr R be a function defined as f(x)=(x^(2)-6)/(x^(2)+2) , then f is

Let f:R rarr R be a function is defined by f(x)=x^(2)-(x^(2))/(1+x^(2)), then

Let f:R to R be a function defined by f(x)=(x^(2)-8)/(x^(2)+2) . Then f is

Let f:(2,4)rarr(1,3) be a function defined by f(x)=x-[(x)/(2)], then f^(-1)(x) is equal to:

Let f:RrarrR be function defined by f(x)={(sin(x^2)/2, ifx!=0),(0,if x=0):} Then, at x=0, f is

Let f be a function defined by f(x) = 2x^(2) - log |x|, x ne 0 then

Let f: RtoR be function defined by f(x)=sin (2x-3) , then f is

Let f : R to R be a function defined as f(x) = {((b + 2)x-11c, x 2):} then f(x)is:

RESONANCE-RELATION, FUNCTION & ITF-SCQ_TYPE
  1. Range of f(x) = 4^x + 2^x + 1 is

    Text Solution

    |

  2. The range of f(x)=logsqrt5 (sqrt2(sinx-cosx)+3) is

    Text Solution

    |

  3. Let f: RrarrR be a function defined by f(x)=(2x^2-x+5)/(7x^2+2x+10) th...

    Text Solution

    |

  4. Let f :RrarrR be a function defined by f(x) = x^3 + x^2 + 3x + sin x. ...

    Text Solution

    |

  5. Domain of definition of the functioni f(x)=3/(4-x^(2))+log(10)(x^(3)-x...

    Text Solution

    |

  6. if f:[0.oo)->(0,oo), f(x) = x/(1-x) is

    Text Solution

    |

  7. Range of the function f(x)=((x-2)^2)/((x-1)(x-3)) is

    Text Solution

    |

  8. Range of the function f(x)=(x-2)/(x^2-4x+3) is

    Text Solution

    |

  9. Statement -1 If f(x) and both are one one and f(g(x)) exists, then f(g...

    Text Solution

    |

  10. Statement-1 If y=f(x) is increasing in [alpha,beta], then its range is...

    Text Solution

    |

  11. Let f (x) =[0, if x is rational and x if x is irrational and g (x)=[...

    Text Solution

    |

  12. Which of the following pair of functions are identical

    Text Solution

    |

  13. Let f(x) be a function whose domain is [-5,6]. Let g(x)=|2x+5|,then do...

    Text Solution

    |

  14. Let g(x)=1+x-[x]a n df(x)={-1, x<0 0, x=0f, x >0 . Then for all x ,f(g...

    Text Solution

    |

  15. The function f(x)=log((1+sinx)/(1-sinx)) is

    Text Solution

    |

  16. The function f(x)=[x]+1/2,x!inI is a/an (wher [.] denotes greatest int...

    Text Solution

    |

  17. If the graph of the function y = f(x) is symmetrical about the line x ...

    Text Solution

    |

  18. Fundamental period of f(x)=sec(sin x) is

    Text Solution

    |

  19. If f(x)=sin(sqrt([a])x) (where [.] denotes the greatest integer functi...

    Text Solution

    |

  20. Find the area below the curve y=[sqrt(2+2cos2x)] but above the x-axis ...

    Text Solution

    |