Posted by Mia on .
Verify that the functions f and g, are inverses of each other by showing that
f(g(x))=x and g(f(x))=x.
f(x)=4x^3
g(x)=^3ã4x

Precalculus 
Steve,
just plug in the values for f and g
f(g) = 4  g^3 = 4  cbrt(4x)^3 = 4  (4x) = x
g(f) = cbrt(4f) = cbrt(4  (4x^3)) = cbrt(44+x^3) = cbrt(x^3) = x