Home
Class 12
MATHS
Let f(x+y) = f(x) f(y) and f(x) = 1 + x ...

Let `f(x+y) = f(x) f(y) and f(x) = 1 + x g(x) G(x)` where `lim_(x->0) g(x) =a and lim_(x->o) G(x) = b. `Then `f'(x)` is

Promotional Banner

Topper's Solved these Questions

  • Continuity, Differentiability and Graph of Function

    A DAS GUPTA|Exercise Exercise|38 Videos
  • COMPLEX NUMBERS

    A DAS GUPTA|Exercise EXERCISE|224 Videos
  • Coordinates and Straight Lines

    A DAS GUPTA|Exercise EXERCISE|111 Videos

Similar Questions

Explore conceptually related problems

Let f(x+y)=f(x)f(y) and f(x)=1+xg(x)G(x) where lim_(x rarr0)g(x)=a and lim_(x rarr o)G(x)=b Then f'(x) is

Let f(x+y)=f(x)f(y)andf(x)=1+xg(x)phi(x)" where "lim_(x to 0) g(x)=a andlim_(x to 0) phi(x)=b . Then what is f(x) equal to?

Let f(x+y)=f(x)f(y) and where f(x)=1+xg(x)phi(x) , lim_(xto0)g(x)=a and lim_(xto0)phi(x)=b Then what is f'(x) equal to ?

Let f:R to R be a function given by f(x+y)=f(x)f(y)"for all "x,y in R "If "f(x)=1+xg(x)+x^(2) g(x) phi(x)"such that "lim_(x to 0) g(x)=a and lim_(x to 0) phi(x)=b, then f'(x) is equal to

Which of the following statement(s) is (are) INCORRECT ?. (A) If lim_(x->c) f(x) and lim_(x->c) g(x) both does not exist then lim_(x->c) f(g(x)) also does not exist.(B) If lim_(x->c) f(x) and lim_(x->c) g(x) both does not exist then lim_(x->c) f'(g(x)) also does not exist.(C) If lim_(x->c) f(x) exists and lim_(x->c) g(x) does not exist then lim_(x->c) g(f(x)) does not exist. (D) If lim_(x->c) f(x) and lim_(x->c) g(x) both exist then lim_(x->c) f(g(x)) and lim_(x->c) g(f(x)) also exist.

Let f(x+y)=f(x) f(y) and f(x)=1+(sin 2x)g(x) where g(x) is continuous. Then, f'(x) equals

Let f(x) be a function satisfying f(x+y)=f(x)f(y) for all x,y in R and f(x)=1+xg(x) where lim_(x to 0) g(x)=1 . Then f'(x) is equal to

Let f:R to R be a function given by f(x+y)=f(x) f(y)"for all "x,y in R "If "f(x)=1+xg(x),log_(e)2, "where "lim_(x to 0) g(x)=1. "Then, f'(x)=

A DAS GUPTA-Continuity, Differentiability and Graph of Function-Exercise
  1. Let f(x+y) = f(x) f(y) and f(x) = 1 + x g(x) G(x) where lim(x->0) g(x)...

    Text Solution

    |

  2. If f(x)=(e^(1/x)-1)/(1+e^(1/x)) when x!=0 =0, when x=0 show that f(x)...

    Text Solution

    |

  3. Determine the values of a ,\ b ,\ c for which the function f(x)={(s...

    Text Solution

    |

  4. If g(x)=(1-a^x+x a^xloga)/(x^2*a^x), x<0 ((2a)^x-xlog(2a)-1)/(x^2), x...

    Text Solution

    |

  5. Let f(x) = {{:(x^(2)/2", "0 lexlt1),(2x^(2)-3x+3...

    Text Solution

    |

  6. Discuss the continuity of f(x)=(lim)(nvecoo)(x^(2n)-1)/(x^(2n)+1)

    Text Solution

    |

  7. The function f(x). defined as f(x)=lim(n->oo)(f(x)+x^(2n)g(x))/(1+x^(2...

    Text Solution

    |

  8. Consider the function f defines by f(x) = x-[x], where[x] denotes the ...

    Text Solution

    |

  9. The values of a and b so that the function f(x) = {{:(x + a sqrt(2) si...

    Text Solution

    |

  10. Let f(x+y)=f(x)+f(y) for all xa n dydot If the function f(x) is contin...

    Text Solution

    |

  11. Leg f(x+y)=f(x)+f(y)fora l lx , y in R , If f(x)i scon t inuou sa tx=...

    Text Solution

    |

  12. Let f (x+y)=f (x) f(y) AA x, y in R , f (0)ne 0 If f (x) is continous ...

    Text Solution

    |

  13. Let f : [0, 1] rarr [0, 1] be a continuous function such that f (f (x)...

    Text Solution

    |

  14. The set of all points, where the function f (x) = x/(1+|x|) is dif...

    Text Solution

    |

  15. The set of points where ,f(x) = x|x| is twice differentiable is

    Text Solution

    |

  16. Let f(x) be difined in the interval [-2, 2] such that f(x)={{:(-1"...

    Text Solution

    |

  17. Let f(x) = {{:(x^(2)/2", "0 lexlt1),(2x^(2)-3x+3...

    Text Solution

    |

  18. Draw the graph of the function and discuss the continuity and differen...

    Text Solution

    |

  19. Given the function f(x) = 1/( 1-x) , The points of discontinuity of th...

    Text Solution

    |

  20. If f(x)={:{(ax^(2)-b", for " 0 le x lt1),(2", for " x=1),(x+1", for " ...

    Text Solution

    |

  21. If f(x)={(((1-sin^(3)x))/(3cos^(2)x)",",x lt (pi)/(2)),(a",",x=(pi)/(2...

    Text Solution

    |