Answer:
Cbrt(x²) or x^(2/3)
Step-by-step explanation:
It's similar to the way you would normally just insert a number into the function, except here you're inserting one function into another function. (f°g) implies that g(x) is the input, while if it were (g°f), f(x) would be the input. So:
- f(x)= Cbrt(x-1)
- g(x)=x²+1
- ((f°g)(x)) =f(g(x))
With that we can say:
((f°g)(x)) =f(g(x))=Cbrt([x²+1]-1)=Cbrt(x²) or x^(2/3)
