If `f(x)=(x-1)/(x+1),` then find `f{f(x)}`

If f(x)=(a-x^n)^(1/n) then find f(f(x))

If f(x)=e^(x)(x^(2)+1) then find f'(x)

If f(x)=(x-1)/(x+1), then f(f(ax)) in terms of f(x) is equal to (a) (f(x)-1)/(a(f(x)-1)) (b) (f(x)+1)/(a(f(x)-1))(c)(f(x)-1)/(a(f(x)+1))(d)(f(x)+1)/(a(f(x)+1))

If f(x)=(x+1)/(x-1),x!=1 then (f(f(f(f(x)))))=f(x)

(1) If f(x)=a^(x)*e^(x^(2))" then find "f'(x)

If f(x)=(x+1)/(x-1), x ne 1 , find f(f(f(f(f(2)))))

If f(x)=(x+1)/(x-1), x ne 1 , find f(f(f(f(2)))))

if f(x)=1/(1-x) then find f((x-1)/x)

If f(x)=(x-1)/(x+1), find f(2x) in terms of f(x)