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

If f (x) =1 -1/x, then f (f ((1)/(x))) is

If f (x) =1 -1/x, then f (f ((1)/(x))) is

If f(x) = 1+x^4 , then f(x).f((1)/(x))=

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

If f(x)=1-(1)/(x),"then"f[f((1)/(x))] is :

" 4.If f(x)=(x+1)/(x-1) then f(x)+f((1)/(x)) is

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

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

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

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))