If `g(x)=x^2+2x+1` and `g(f(x))=4(x^2+2x+1)` then `f(x)` can be (A) `2x+1` (B)`2x-1` (C) `2x+3` (D)`2x-3`

If g(x)=x^(2)+x-2 and (1)/(2)g(f(x))=2x^(2)-5x+2, then f(x) is

If g(x) = 2x^(2) + 3x - 4 and g (f(x)) = 8x^(2) + 14 x + 1 then f (2) =

If f(x)=x^2 and g(x)=x^2+1 then: (f@g)(x)=(g@f)(x)=

If f (x) =(x^(2) -1) " and " g (x) =(2x +3) " then " (g o f) (x) =?

If f(x)=1+2x and g(x) = x/2 , then: (f@g)(x)-(g@f)(x)=

If, from RtoR,f(x)=(x+1)^2 and g(x)=x^2+1, then: (f@g)(-3)=

If f(x)=sqrt(2-x) and g(x)=sqrt(1-2x) ,then the domain of f[g(x)] is:

g(x)= (x-(1/2))/x-1 , f(x)=2x-1 , then fog(x) is

If f(x),g(x) be twice differentiable functions on [0,2] satisfying f''(x)=g''(x)f'(1)=2g'(1)=4 and f(2)=3g(2)=9 then f(x)-g(x) at x=4 equals (A) 0 (B) 10 (C) 8 (D) 2