If the function `f:R rarr R` and `phi:R rarr R` be defined by `f(x)=x^(2)-|x|` and `phi(x)=x^(2)+1` then the value of `(phi (f))(2)` is :

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

Let R be the set of real numbers and the functions f:R rarr R and g:R rarr R be defined by f(x)=x^(2)+2x-3 and g(x)=x+1 Then the value of x for which f(g(x))=g(f(x)) is

f:R rarr Rf:R rarr R is defined by f(x)=x^(2)-3x+2 find

If f:R rarr R and g:R rarr R defined by f(x)=2x+3 and g(x)=x^(2)+7 then the values of x for which f(g(x))=25 are

The function f:R rarr R is defined by f(x)=3^(-x)

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

If the function f:R rarr R be defined by f(x)=2x-3 and g:R rarr R by g(x)=x^(3)+5 then find the value of (fog)^(-1)(x)

If f:R rarr R defined by f(x)=x^(2)-6x-14 then f^(-1)(2)=