Home
Class 12
MATHS
Let RR be the set of real numbers and f:...

Let `RR` be the set of real numbers and `f: RR rarr RR ,g: RR rarr RR` be two functions such that, `(g o f) (x) = 4x^(2)+4x+1` and `(f o g ) (x) = 2x^(2)+1` . Find `f(x) and g(x)`.

Text Solution

Verified by Experts

The correct Answer is:
required `f(x) =2x +1 and g(x) =x^(2)`
Promotional Banner

Topper's Solved these Questions

  • MAPPING OR FUNCTION

    CHHAYA PUBLICATION|Exercise EXERCISE 2A|12 Videos
  • MAPPING OR FUNCTION

    CHHAYA PUBLICATION|Exercise EXERCISE 2A ( very short answer type questions)|22 Videos
  • LOGARITHM

    CHHAYA PUBLICATION|Exercise Long Answer Type Question|12 Videos
  • MATHEMATICAL REASONING

    CHHAYA PUBLICATION|Exercise JEE Main (AIEEE) Archive (2016 )|1 Videos

Similar Questions

Explore conceptually related problems

Let f:RR rarr RR and g: RR rarr RR be two functions such that (g o f) (x) = sin ^(2) x and ( f o g) (x) = sin (x^(2)) . Find f(x) and g(x) .

Let RR be the set of real numbers and f:RR rarr RR be defined by , f(x)=2x +1 . Find g: RR rarr RR , such that (g o f) (x) =10 x+10

Let RR be the set of real numbers . If the functions f:RR rarr RR and g: RR rarr RR be defined by , f(x)=3x+2 and g(x) =x^(2)+1 , then find ( g o f) and (f o g) .

Let RR be the set of real numbers and f: RR rarr RR , g:RR rarr RR be defined by f(x) =5|x|-x^(2) and g(x) =2x-3 Compute (i) (g o f) (-2) (ii) (f o g) (-1) (iii) (g o f)(5) (iv) (f o g )(5)

Let RR be the set of real number and f: RR rarr RR , be given by f(x)=2x^(2)-1 . .Is this mapping one -one ?

Let RR be the set of real numbers and f: RR rarr RR be defined by , f(x) =x^(3) +1 , find f^(-1)(x)

Let RR be the set of real numbers and the mapping f: RR rarr RR be defined by f(x)=2x^(2) , then f^(-1) (32)=

Let RR be the set of real numbers and f : RR to RR be defined by f(x)=sin x, then the range of f(x) is-

Let RR be the set of real numbers and f:RR to RR be given by, f(x)=log_ex. Does f define a function ?

Let RR be the set of real numbers and f: RR rarr RR, g: RR rarr RR, h: RR rarr RR be defined by , f(x) =sin x, g(x)=3x -1, h(x)=x^(2)-4 .Find the formula which defines the product function h o (g o f) and hence compute [h o( g o f)] ((pi)/(2))