If `f(x)=(x)` and `g(x)=(5x-2)` Find `f0g` and `g0f`

Let g:RrarrR and f:RrarrR is defined as f(x)=2x and g(x)=x^2 . Find f0g and g0f .

If f(x)=x^3 and g(x)=x^2 then find f0g and g0f Is f0g = g0f ?

If f(x)=x^2 and g(x)=sin3x then find f0g and g0f Is f0g = g0f ?

If f(x)=|x| and g(x)=|5x-2| , then find gof.

If f(x)=x+7 and g(x)=x-7 , then find (fog) (7).

If f(x) = x + 7 , and g(x)=x-7 , x in R. Find (f0g)(7)?

If f(x)=x^(x) , then find f'(x) .

Let f : R rarr R and g : R rarr R be defined by f(x)=x^2+3x+1 and g(x)=4x-3 . Find formulas defining the compositions fog,gof,fof and gog.

Let f,g: R rarr R be defined respectively by f(x)=x+1,g(x)=2x-3 .Find f+g,f-g and f/g .

lf f(x) = [x] and g (x) = |x |, find (g-f)(-4.5)