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

If f(x+1/x)=x^2+1/x^2+8 then f(3), f(5), f(-1)

Let f(x+(1)/(x))=x^(2)+(1)/(x^(2)) then f(x)=

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

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

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

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

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

State true or false : If f(x)=(x+1/x)^(2n)+(x-1/x)^(2n) the f(x) is a polynomial function which is an even function.

If f (x)=4x -x ^(2), then f (a+1) -f (a-1) =

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