If `f(x)=(kx)/(x+1)`, where `xne-1andf{f(x)}=x" for "xne-1` then find the value of k.

If f(x)= (Kx)/(1 + x), x ne -1 and f{f(x)} = x, then the value of k

If f(x)=(3x-1)/(x+1),xne-1 , then find fof (x).

If f(x) is an even function and satisfies the relation x^(2)f(x)-2f(1/x)=g(x),xne0 , where g(x) is an odd function, then find the value of f(2).

If f(x)=|logx| , then for xne1,f'(x) equals

If f(x)=|logx| , then for xne1,f'(x) equals

If f(x)=(x)/(x-1),xne1 , then show that fof (x) = x.

If f(x)=(x-1)/(x+1), xne1 show that f(f(x))=(-1)/(x) provided xne0 .

If f(x)=(1-x)/(1+x) , xne1 then show that f(1/x)=-f(x)

If f(x)=(x-1)/(x+1),xne1 , then f(f(x)) =__________.