Home
Class 11
MATHS
If f(x) = (x-1)/(x+1), then f(2) is equa...

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

A

`(f(x) + 1)/(f (x) +3)`

B

` (3f (x) +1)/(f (x) +3)`

C

`(f(x)+3)/(f (x) +1)`

D

`(f(x) +3)/(3f (x)+1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SETS, RELATIONS AND FUNCTIONS

    TARGET PUBLICATION|Exercise EVALUATION TEST|14 Videos
  • SETS, RELATIONS AND FUNCTIONS

    TARGET PUBLICATION|Exercise CRITICAL THINKING|83 Videos
  • PROBABILITY

    TARGET PUBLICATION|Exercise EVALUATION TEST|8 Videos
  • STRAIGHT LINE

    TARGET PUBLICATION|Exercise EVALUATION TEST|10 Videos

Similar Questions

Explore conceptually related problems

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

Let f(x)=(x-1)/(x+1) then f(1) is equal to

If f(x)=(1)/(1-x), then f(f(f(x))) is equal to

If f(x)=(x+2)/(x-1) then f(y) is equal to

" If f(x)=(x)/(1+x) then f^(-1)(x) is equal to

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

If f(x) = 1/x , then f(a)/f(a + 1) is equal to

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

If f : R - {1} rarr R, f(x) = (x-3)/(x+1) , then f^(-1) (x) equals

If f(x)=(x-1)/(x+1), then f(f(ax)) in terms of f(x) is equal to (a) (f(x)-1)/(a(f(x)-1)) (b) (f(x)+1)/(a(f(x)-1))(c)(f(x)-1)/(a(f(x)+1))(d)(f(x)+1)/(a(f(x)+1))

TARGET PUBLICATION-SETS, RELATIONS AND FUNCTIONS-COMPETITVE THINKING
  1. If f(x)=(1-x)/(1+x), then f[ f(cos2 theta)]=

    Text Solution

    |

  2. If f(x)=(25-x^(4))^(1//4) for 0 lt x lt sqrt5 then f(f((1)/(2)))=

    Text Solution

    |

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

    Text Solution

    |

  4. Let f(x)=(alpha x)/(x+1), x ne -1. Then, for what value of alpha " is ...

    Text Solution

    |

  5. If f(x)=ax+b and g(x)=cx+d, then f(g(x))=g(f(x)) is equivalent to

    Text Solution

    |

  6. If f (x) = 8x ^(3), g (x) =x ^(1/3), then fog (x) is

    Text Solution

    |

  7. If f(x) =2x +1 and g (x) (x-1)/(2) for all real x, then (fog) ^(-1)( (...

    Text Solution

    |

  8. If f(x)=sin^2x+sin^2(x+pi/3)+cosxcos(x+pi/3)a n dg(5/4=1, then (gof)(x...

    Text Solution

    |

  9. Let g(x)=1+x-[x] and f(x)={{:(-1",", x lt 0),(0",",x=0),(1",", x gt 0)...

    Text Solution

    |

  10. Two functions f:Rrarr R, g:R rarr R are defined as follows : f(x)={{...

    Text Solution

    |

  11. If f:R->R and g:R->R is given by f(x) =|x| and g(x)=[x] for each x in ...

    Text Solution

    |

  12. Let the function f, g, h are defined from the set of real numbers RR t...

    Text Solution

    |

  13. If f(x)=sin^2x+sin^2(x+pi/3)+cosxcos(x+pi/3)a n dg(5/4=1, then (gof)(x...

    Text Solution

    |

  14. Let f(x)=x^2a n dg(x)=sinxfora l lx in Rdot Then the set of all x sat...

    Text Solution

    |

  15. Let f,g: RvecR be a two function defined as f(x)=|x|+xa n dg(x)=|x|-x ...

    Text Solution

    |

  16. The period of f (x) =x - [x], if it is periodic is

    Text Solution

    |

  17. If f: R rarr R be defined by f(x) =e^(x) and g:R rarr R be defined b...

    Text Solution

    |

  18. If f: R to R be defined by f(x) =(1)/(x), AA x in R. Then , f is

    Text Solution

    |

  19. If f : A to B is bijection and g : B to A is that inverse of f, then ...

    Text Solution

    |

  20. If A={1,2,3,4}" and "B={1,2,3,4,5,6} are two sets and function f: A to...

    Text Solution

    |