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

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

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

If f(x)=(1+x)/(1-x) then f(x)*(f(x^(2)))/(1+(f(x))^(2))

If two roots of the equation (p-1)(x^(2)+x+1)^(2)-(p+1)(x^(4)+x^(2)+1)=0 are real and distinct and f(x)=(1-x)/(1+x) then f(f(x))+f(f((1)/(x))) is equal to

If f(x)=(x-1)/(x+1) then f^(-1)(x)=?

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

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

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

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

Let f(x)=(x)/(x+3) , then (1)/(f(x+1))-f((1)/(x+1))=?