Home
Class 12
MATHS
A differentiable function f defined for ...

A differentiable function f defined for all x > 0 and satisfies `f(x^2)=x^3` for all x > 0. What is the value f'(16) ?

Text Solution

Verified by Experts

`f(x^2)=x^3rArrf(x^2). 2x=3x^2rArrf(x^2)=(3x)/2rArrf(4^2)=(3xx4)/2rArrf(16)=6`
Promotional Banner

Topper's Solved these Questions

  • STRAIGHT LINES

    MBD PUBLICATION|Exercise QUESTION BANK|127 Videos
  • TRIGONOMETRIC FUNCTIONS

    MBD PUBLICATION|Exercise QUESTION BANK|267 Videos

Similar Questions

Explore conceptually related problems

A differentiable function f defined for all x>0 satisfies f(x^(2)) = x^(3) for all x>0. what is f'(b)?

If f(x) =| x |, what is the value of f(0-)?

If f(x+y) = f(x) f(y) for all x,y and if f(5) = 2 and f(0) = 3, then what is the value of f '(5)?

If A = R -{3} and B = R -{1}. Consider the function f:A to B defined by f(x)=(x-2)/(x-3) , for all x in A . Then, show that f is bijective. Find f^(-1)(x) .

If the invertible function f is defined as f(X) = (3x-4)/5 , write f^(-1) (X) .

The function f(x) = {[6.5, for x le 0],[2a + x, forx>0]:} continuous at x = 0. Then what is value of a ?

Test differentiability and continuity of the following functions. f(x) = x/(1+|x|) at x = 0

If f(x) = (3x+2)^100 and f ' (x) = n(3x+2)^99 then what is the value of n ?

If f:RrarrR be a function defined by f(x)=cos(5x+2), then f is

If f (x+y)=f(x)f(y) for all real x,y,f(2)=3,f'(0)=1 then what is the value of f'(2) ?

MBD PUBLICATION-THREE DIMENSIONAL GEOMETRY-QUESTION BANK
  1. Give example of a function whose is continuous but not differentiable ...

    Text Solution

    |

  2. If f(x+y) = f(x) f(y) for all x,y and if f(5) = 2 and f(0) = 3, then w...

    Text Solution

    |

  3. A differentiable function f defined for all x > 0 and satisfies f(x^2)...

    Text Solution

    |

  4. If f(x) =[tan^2x], what is f ' (0)?

    Text Solution

    |

  5. If f(x) = (3x+2)^100 and f ' (x) = n(3x+2)^99 then what is the value o...

    Text Solution

    |

  6. If xin((3pi)/4,pi) what is dy/dxfor y = | cos x | + | sin x | ?

    Text Solution

    |

  7. What is the derivative of f(In x) with respect to x where f(x) = In x ...

    Text Solution

    |

  8. If f'(x)=sqrt(2x^2-1) and y=f(x^2) then what is dy/dx at x = 1 ?

    Text Solution

    |

  9. Defferentiate tan^(-1) frac (2x)(1-x^2) w.r.t. sin^(-1) frac (2x)(1+...

    Text Solution

    |

  10. What is the differential co-efficient of "tan"^(-1)sqrt(1+x^2-1)/x wit...

    Text Solution

    |

  11. If y=at^2, x= 2at where a is a constant what is the value of (d^2y)/(d...

    Text Solution

    |

  12. Is the function f(x)="sin"^(-1)(2x)/(1+x^2) differentiable at x=pm1?

    Text Solution

    |

  13. Write the value of d/dx(sin^-1x+cos^-1x) for x in(-1,1).

    Text Solution

    |

  14. Write the value of d/dxsec^-1(1/(2x^2-1)), for x in(0,1/sqrt2).

    Text Solution

    |

  15. Write the interval in which the fuction f(x)=sin^-1(1-x) is differenti...

    Text Solution

    |

  16. Write the value x for which d/dxsin(sin^-1x)=1

    Text Solution

    |

  17. Write the value x for which d/dxsin^-1(sin x)=1

    Text Solution

    |

  18. Write the derivative of sec^-1x with respect to x at x=-1/3.

    Text Solution

    |

  19. Find the derivative of Inxa.

    Text Solution

    |

  20. Write a logarithmic functions which is differentiable atevery point in...

    Text Solution

    |