3.25. Упростите выражение: 1) √3/√75 + √0,64; 2) √5/√125 + √0,0484; 3) √27/√96 − √256; 4) −√648/√12 + √0,0081.

1. \(\dfrac{\sqrt3}{\sqrt{75}}+\sqrt{0.64}=\dfrac{\sqrt3}{5\sqrt3}+0.8=0.2+0.8=1\).
2. \(\dfrac{\sqrt5}{\sqrt{125}}+\sqrt{0.0484}=\dfrac{\sqrt5}{5\sqrt5}+0.22=0.2+0.22=0.42\).
3. \(\dfrac{\sqrt{27}}{\sqrt{96}}-\sqrt{256}=\dfrac{3\sqrt3}{4\sqrt6}-16=\dfrac{3\sqrt2}{8}-16\).
4. \(-\dfrac{\sqrt{648}}{\sqrt{12}}+\sqrt{0.0081}=-\sqrt{54}+0.09=-3\sqrt6+0.09\).

Ответ: 1) \(1\); 2) \(0.42\); 3) \(\dfrac{3\sqrt2}{8}-16\); 4) \(0.09-3\sqrt6\).