Question

F(x)=2x andg (x)=1/3x thenfox is

Answer 1

to find fog

which means to find f[g(x)]

g(x) = 1/3x

which is equal to f(1/3x)

f(x) = 2x

So, f(1/3x) = 2(1/3x) = 2/3x

Or, 2x/3

Hope this helps