Home
Class 14
MATHS
If f(x)=2x^(2)+7x-9 and g(x)=2x+3, then ...

If `f(x)=2x^(2)+7x-9 and g(x)=2x+3`, then find the vlaue of `g(g(x))` at `x=2`

A

92

B

39

C

29

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELEMENTS OF ALGEBRA

    QUANTUM CAT|Exercise QUESTION BANK|196 Videos
  • GEOMETRY

    QUANTUM CAT|Exercise QUESTION BANK|547 Videos

Similar Questions

Explore conceptually related problems

If f(x)=x^4+3 and g(x)=x+6 , then find (f+g)(2)

If f(x)=x^(2)g (x) and g(1)=6, g'(x) 3 , find the value of f' (1).

If f(x)=(x-2)^2 and g(x) =3x-3 then: (f@g)(2)=

If f (x) =(x^(2) -1) " and " g (x) =(2x +3) " then " (g o f) (x) =?

If f(x)=2x+3 and g(x)=9x+6 , then find g[f(x)]-f[g(x)]

If f(x) = x^(2) and g(x) = (1)/(x^(3)) . Then the value of (f(x)+g(x))/(f(-x)-g(-x)) at x = 2 is

If f(x) = x^(2) - 5x -36 and g(x) = x^(2) + 9x + 20, then for what values of x is 2f(x) = 3g(x) ?

If f:R to R and g:R to R are defined by f(x)=(2x+3) and g(x)=x^(2)+7 , then the values of x such that g(f(x))=8 are

If g(x)=x^(2)+x+x-1 and g(f(x))=4x^(2)-10x+5 then find f((5)/(4))

QUANTUM CAT-FUNCTIONS AND GRAPHS-QUESTION BANK
  1. A shopkeeper purchases a table and sells it for Rs. 4200. If he incurs...

    Text Solution

    |

  2. f(x)=(1)/(x),g(x)=(x+(1)/(x)), then which of the following is true?

    Text Solution

    |

  3. If f(x)=2x^(2)+7x-9 and g(x)=2x+3, then find the vlaue of g(g(x)) at x...

    Text Solution

    |

  4. Find f(f(f(f(f(2)))))) if f(x)=(x+1)/(x-1),x ne 1

    Text Solution

    |

  5. f(x)=1-h(x), g(x)=1-k(x), h(x)=f(x)+1 f(x)=g(x)+1, k(x)=f(x)+1 Fin...

    Text Solution

    |

  6. f(x) = 1 - h(x), g(x) = 1 - k(x), h(x) = f(x) + 1 f(x) = g(x) + 1, k...

    Text Solution

    |

  7. If f(x) and g(x) are odd functions of x, then which of the following i...

    Text Solution

    |

  8. If f(x) is an even function of x and g(x) is an odd function then whic...

    Text Solution

    |

  9. If y=" min "(x^(2)+2, 6-3x), then the greatest value of y for x gt0

    Text Solution

    |

  10. If p^(2)+q^(2)+r^(2)=1, then the maximum vlaue of pqr is :

    Text Solution

    |

  11. find the value of f(5), if f ( x ) = 3 x^2 − 4x ?

    Text Solution

    |

  12. Find the value of f ( f ( − 3 ) ) , if f ( x ) = (x+1)/ x

    Text Solution

    |

  13. Ramesh bought a chair for Rs. 1540 and sold it to Suresh. If Ramesh ea...

    Text Solution

    |

  14. A(x, y, z)=" min. "(x+y, y+z, z+x) B(x, y, z)="max "(x-y, y-z, z-x) ...

    Text Solution

    |

  15. A(x, y, z)=" min. "(x+y, y+z, z+x) B(x, y, z)="max "(x-y, y-z, z-x) ...

    Text Solution

    |

  16. A(x, y, z)=" min. "(x+y, y+z, z+x) B(x, y, z)="max "(x-y, y-z, z-x) ...

    Text Solution

    |

  17. A(x, y, z)=" min. "(x+y, y+z, z+x) B(x, y, z)="max "(x-y, y-z, z-x) ...

    Text Solution

    |

  18. A(x, y, z)=" min. "(x+y, y+z, z+x) B(x, y, z)="max "(x-y, y-z, z-x) ...

    Text Solution

    |

  19. What is the maximum possible value of xy, where |x+5|-1=0 and y=9-|x-4...

    Text Solution

    |

  20. For real x,y such that f(x) ne 0, if f(x+y) = f(x).f(y), what's the va...

    Text Solution

    |