Question 736437

Suppose we have two functions of a variable {{{x}}},

1st is {{{f(x) = 1/x}}} and 2nd {{{f(x) = 1/x}}},(we can name it {{{g(x) = 1/x}}}

then

{{{f(f(x))= 1/(f(x))= 1/(1/x)= x}}}....(same as were useing {{{f(g(x)))

now since {{{f(f(x))=x}}} use it as first function and {{{f(x) = 1/x}}} as second

so, we have to find {{{f(f(f(x)))}}} 

{{{f(f(f(x)))=f(x)=1/x}}}