Question 75
For $x \geq \frac{1}{2}$, what is the largest possible value of the expression
$$
\frac{x^4 - x^2}{x^6 + 16x^3 - 1}?
$$
$$
\frac{x^4 - x^2}{x^6 + 16x^3 - 1}?
$$
MathNet 2015-part-01 — 191 problems (EN–VI) Question 75
Math Olympiad Vault · MathNet 2015-part-01 — 191 problems (EN–VI)