$\sqrt{4 \sin^2 \frac{\pi}{24}}$ এর মান কোনটি? Mymensingh • 2023 ক (ক) $\sqrt{2 - \sqrt{2 + \sqrt{3}}}$ খ (খ) $\sqrt{2 + \sqrt{2 + \sqrt{3}}}$ গ (গ) $\sqrt{2 - \sqrt{2 - \sqrt{3}}}$ ঘ (ঘ) $\sqrt{2 + \sqrt{2 - \sqrt{3}}}$