`f:R->R` defined by `f(x) = x^2+5`

If f: R ->R is defined by f(x) = x^2- 3x + 2 , find f(f(x)) .

If the function f: R->R be defined by f(x)=x^2+5x+9 , find f^(-1)(8) and f^(-1)(9) .

If the function f: R->R be defined by f(x)=x^2+5x+9 , find f^(-1)(8) and f^(-1)(9) .

Show f:R rarr R defined by f(x)= x^2 + x for all x in R is many one.

f:R rarr R defined by f(x)=x^(2)+5

Prove that the function f: R rarr R defined by f(x) = 2x + 5 is one-one.

F : R to R defined by f (x) = (1)/(2x^2 +5) the range of F is

Fill in the blank: The domain of the function f : R rarr R defined by f(x) = sqrt(x^2 - 5x + 6) is ________.

Let f: R rarr R be defined by f(x) = 3x^(2) - 5 and g : R rarr R, g(x) = x/(x^(2)+1) Then gof is ...........