\(\sqrt{3\frac{1}{2}}.\sqrt{3\frac{3}{7}}.\sqrt{12}=?\)
\(12\). \(14\). \(15\). \(16\). Hướng dẫn giải:\(\sqrt{3\dfrac{1}{2}}.\sqrt{3\dfrac{3}{7}}.\sqrt{12}\)
\(=\sqrt{\dfrac{7}{2}}.\sqrt{\dfrac{24}{7}}.\sqrt{12}\)
\(=\sqrt{\dfrac{7}{2}.\dfrac{24}{7}.12}=12\)
