Вычислите: 1) \(\sqrt{72}\cdot\sqrt2\); 3) \(\frac{\sqrt{242}}{\sqrt2}\).

1. \(\sqrt{72}\cdot\sqrt2=\sqrt{144}=12\).
2. \(\frac{\sqrt{242}}{\sqrt2}=\sqrt{\frac{242}{2}}=\sqrt{121}=11\).

Ответ: 1) \(12\); 3) \(11\).