Home
Class 11
MATHS
If f(x + y) = f(x) - f(y),forall x, y in...

If f(x + y) = f(x) - f(y),`forall x, y in R`, then show that f(3) = f(1)

Promotional Banner

Topper's Solved these Questions

  • FUNCTION

    PATHFINDER|Exercise QUESTION BANK|296 Videos
  • LIMIT, CONTINUITY AND DIFFERENTIABILITY

    PATHFINDER|Exercise QUESTION BANK|293 Videos

Similar Questions

Explore conceptually related problems

Let f be a function such that f(x + y) = f(x) + f(y) forall x , y in R , if f(1) = k, then show that f(n) is equal to nk.

If f is a function satisfying f (x +y) = f(x) f(y) for all x, y in N such that f(1) = 3 and sum _(x=1)^nf(x)=120 , find the value of n.

Let f(x) = 1/2[f(xy) + f(x/y)] for x,y in R^+ such that f(1) = 0 f'(1) = 2 Answer the following question based on above passage : f'(3) is equal to

Let f(x) = 1/2[f(xy) + f(x/y)] for x,y in R^+ such that f(1) = 0 f'(1) = 2 Answer the following question based on above passage : f€ is equal to

Let f(x) = 1/2[f(xy) + f(x/y)] for x,y in R^+ such that f(1) = 0 f'(1) = 2 Answer the following question based on above passage : f(x) - f(y) is equal to

If f(x+y)=f(x)+f(y) for all real x and y, show that f(x)=xf(1) .

f is a function such that f(x + y) = f(x) .f(y), forall x, y in R , if f(1) = 3, then find sum_(r = 1)^n f(r) .

If f(x) is a function satisfying f(x+y)=f(x)f(y) for all x,y in N such that f(1) =3 and sum_(x=1)^nf(x)=120 , then the value of n is

If f : R to R satisfies f(x + y)=f(x)+f(y) for all x, y in R and f(1)=7 , then sum_(r=1)^n f(r)

A function f : R to R satisfies the equation f(x + y) = f(x), f(y) for all x, y in R , f(x) ne 0 . Suppose that the function is differentiable at x = 0 and f' (0) = 2. Find (f'(x))/f(x)

PATHFINDER-FUNCTIONS-QUESTION BANK
  1. Find the range of the function f(x) =abs(x - 1) + abs(x - 2) , -1 le x...

    Text Solution

    |

  2. Find the range of the function y = log3 (5 + 4x - x^2).

    Text Solution

    |

  3. If f(x + y) = f(x) - f(y),forall x, y in R, then show that f(3) = f(1)

    Text Solution

    |

  4. Find the range of the function f(x) = (e^x - e^-x).

    Text Solution

    |

  5. Find the inverse function of the function f(x) = [4 - (x - 7)^3]^(1/5)...

    Text Solution

    |

  6. If f(x) =e^(x + a) , g(x) = x^(b^2) and h(x) = e^(b^2 x), then find th...

    Text Solution

    |

  7. Find domain of the function f(x) = 2^sin^(-1)x + 1/sqrt(x - 2).

    Text Solution

    |

  8. Prove that the domain of g(x) =cot^-1 x/sqrt(x^2 - [x]) , x in R is R ...

    Text Solution

    |

  9. Find the range of the function y =1/(2 - cos 2x).

    Text Solution

    |

  10. Find the range of the function y = log2 (sin x + cos x + 3sqrt2)/sqrt2

    Text Solution

    |

  11. Find the value of x which f(x) = 1/sqrt(absx - x) is not defined.

    Text Solution

    |

  12. Find the range of y=x/(1 + x^2)

    Text Solution

    |

  13. If f(x) = cos(loge x), then find the value of f(x)cdot f(y) - 1/2[f(x/...

    Text Solution

    |

  14. Find the domain of f(x) = sin^-1 [ log9(x^2/4)]

    Text Solution

    |

  15. Without using graph paper the graph of the function y = f(x) = abs(x -...

    Text Solution

    |

  16. Without using graph paper draw a sketch graph of the function f(x) = 2...

    Text Solution

    |

  17. Find the domain of the function F(x) = tan^-1 sqrt(x(x + 1)) + sin^-1 ...

    Text Solution

    |

  18. Find the range of the function f(x) = (sec^2x - tan x)/(sec^2 x + tan ...

    Text Solution

    |

  19. Find the domain of function f(x) = cos^-1 ((2 - absx)/4) + 1/log(3 - x...

    Text Solution

    |

  20. If 2f(x) + 3f(-x) = 15 - 4x for all real values of x , then show that ...

    Text Solution

    |