Home
Class 12
MATHS
The function f:NtoN given by f(x)=2x...

The function `f:NtoN` given by `f(x)=2x`

A

one-one and onto

B

one-one but not onto

C

not one-one and not onto

D

onto,but not one-one

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MATRICES

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|128 Videos
  • RELATIONS AND FUNCTIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|86 Videos
A N EXCEL PUBLICATION-PROBABILITY-QUESTION BANK
  1. In a box containing 100 bulbs 10 are defective the probability that ou...

    Text Solution

    |

  2. The probability that a student is not a swimmer is 1/5 then the probab...

    Text Solution

    |

  3. The function f:NtoN given by f(x)=2x

    Text Solution

    |

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

    Text Solution

    |

  5. Let ast be an operation such that aastb=LCM of a and b defined on the ...

    Text Solution

    |

  6. If xy<1,tan^-1x+tan^-1y=........ a)tan^-1(frac(x-y)(1+xy)) b)tan^-1(f...

    Text Solution

    |

  7. Prove that 2 tan^(-1)(1/2) + tan^(-1)(1/7) = tan^(-1)(31/17)

    Text Solution

    |

  8. If A=[[0,1],[0,0]] ,B=[[1,0],[0,0]], then BA=

    Text Solution

    |

  9. Write A=[[3,5],[1,-1]] as the sum of a symmetric and a skew symmetric ...

    Text Solution

    |

  10. Find the inverse of A=[[2,-6],[1,-2]]

    Text Solution

    |

  11. The value of abs((x,x-1) , (x+1,x):} is a)1 b)x c)x^2d)0

    Text Solution

    |

  12. Using properties of determinants prove the following. abs[[1,x,x^2...

    Text Solution

    |

  13. Find all points of discontinuity of f where f is defined by f(x)={(2x+...

    Text Solution

    |

  14. If e^(x-y)=x^y then prove that dy/dx=logx/[logex]^2

    Text Solution

    |

  15. The slope of the tangent to the curve given x=1-costheta,y=theta-sin...

    Text Solution

    |

  16. Find the intervals in which the function f(x)=x^2-4x+6 is strictly dec...

    Text Solution

    |

  17. Find the minimum and maximum value, if any, of the function f(x)=(2x-1...

    Text Solution

    |

  18. Which of the following function has neither local maxima nor local min...

    Text Solution

    |

  19. Find the equation of the tangent to the curve y=3x^2 at (1,1)

    Text Solution

    |

  20. Use differentiation to approximate sqrt36.6.

    Text Solution

    |