Question

f(x)=x+1by x find f'(x)...plz answer...​

Answer 1

Answer:

(Given) f(x)=x/(x-1). Let y=1/x. then,by definition, f(y)=y/(y-1). or f(y )=(1/x)/((1/x)-1). or f(y)=(1/x)/((1-x)/x).

Answer 2

Step-by-step explanation:

f(x)=x-1/x+1

f(1/x)=1/x-1/1/x+1

=1-x/x1+x/x

=1-x/1+x= -x-1/x+1==

-f(x)