If `f(2x + 1 ) = x + 1`, then `f(x^2) =`

If 2f (x +1) +f ((1)/( x +1))=2x, then f(2) is equal to

If f(x)=x^2+2x+1 , then: f(x-1)-=

If f(x) = log ((1+x)/(1-x)) , then f((2x)/(1+x^(2))) is equal to

If f(x)=sqrt(x^(2)-2x+1), then f' (x) ?

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

If f(x)=log((1+x)/(1-x)), then f(x) is (i) Even Function (ii) f(x_(1))-f(x_(2))=f(x_(1)+x_(2)) (iii) ((f(x_(1)))/(f(x_(2))))=f(x_(1)-x_(2)) (iv) Odd function

If f(x-1)=f(x+1) , where f(x)=x^2-2x+3 , then: x=

If f(x)=(1)/(x)-1 where x ne 0, then: f(x)-2.f(2x)=