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

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

If f(x)=x^(3)+2x , then find the value of f(3) .

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

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

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

If lim_(x->oo) f(x) exists and is finite and nonzero and if lim_(x->oo) {f(x)+(3f(x)−1)/(f^2(x))}=3 ,then find the value of lim_(x->oo) f(x)

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

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

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