If f, g : `R rarr R` such that : `f (x) = sqrt x`, `g (x) = x^2 -1` then find fog and gof.

If f, g : R rarr R such that : f (x) = x^2 , g (x) = x + 1, then find fog and gof.

If f(x) = (x+1)/(x+2) and g(x) = x^2 , then find fog

If f : R rarr R and g : R rarr R be two mapping such that f(x) = sin x and g(x) = x^(2) , then find the values of (fog) (sqrt(pi))/(2) "and (gof)"((pi)/(3)) .

If f, g : R rarr R are defined respectively by : f (x) = 8x^3 , g (x) = x^3 . Find fog and gof.

If the functions f and g defined from the set of real number R to R such that f(x) = e^(x) and g(x) = 3x - 2, then find functions fog and gof.

If f, g: Rrarr R are defined by f(x) = x^2 + 3x+1,g(x) = 2x – 3 then find gof .

If f, g: Rrarr R are defined by f(x) = x^2 + 3x+1,g(x) = 2x – 3 then find fog .

If f , g:Rrarr R are defined respectively by f(x) =sqrt(1-x^2),g(x) = log x then find fog and gof.