If `f (x) = (x +2)/( 3x -1) ,` then `f {f (x) }` is

A

x

B

`-x`

C

`1/x`

D

`- 1/x`

Verified by Experts

The correct Answer is:

A

Similar Questions

Explore conceptually related problems

If f : R rarr R be given by f(x) = (3 - x^3)^(1/3) , then (f o f) (x) is

Let f(x) = x^2 - 2x + 3 . Then find f (f (x) )

If f (x)= cos (log _(e) x) then f (x) f (y) - 1/2 [f ((y)/(x)) + f (xy)] has the value :

If f(x)=3x^(4)+4x^(3)-12x^(2)+12 , then f(x) is

If f(x) = ((x)/(2))^(10) , then f(1) + (f'(1))/(1!) + (f''(1))/(2!) + …….(f^((10))(1))/(10!) is equal to

If f (x) =1/(1 - x) , show that f(f(f(x))) = x

If f: R rarr R , f(f(x)) = (f(x))^(2) , then f(f(f(x) ))is equal to

if f(x)=x/(x-1) , x!=1 find the inverse of f