If `f(x) = x^2+1/x^2` then find the value of `f(x)-1/f(x)`

Ilf f(x)={x^3, x 2 , then find the value of f(-1)+f(1)+f(3) . Also find the value (s) of x for which f(x)=2.

If f(x)=x^(3)-(1)/(x^(3)) , then find the value of f(x)+f(-x) .

f(x)=x^2+1/(x^2)-6x-6/x+2 then min value of f(x)

If f'(x) = 1/x + x^2 and f(1)=4/3 then find the value of f(x)

If f(x) = x^2 - 3x + 4 , then find the values of x satisfying the equation f(x) = f(2x + 1) .

If f(x)=x^2+x+1 , then find the value of 'x' for which f(x-1) =f(x)

If f(x)=4x-x^2, x in R , then write the value of f(a+1)-f(a-1)dot

If f(x)=x^(2) is a real function, find the value of f(1).

If (x^2+x−2)/(x+3) -1) f(x) then find the value of lim_(x->-1) f(x)

If f(x)=x^3-frac{1}{x^(3)} find the value of f(x)+f(frac{1}{x})