Question 144
Find all real numbers $x$ which satisfy the equation
$$
2 \sin^2 2x \geq 3 \cos 2x.
$$
$$
2 \sin^2 2x \geq 3 \cos 2x.
$$
MathNet 2015-part-05 — 191 problems (EN–VI) Question 144
Math Olympiad Vault · MathNet 2015-part-05 — 191 problems (EN–VI)