2) Efetue as divisōes: a) sqrt (12)div sqrt (3)= b) sqrt (50)div sqrt (2)= C) (sqrt (49))/(sqrt (25))= d) (12sqrt [3](6))/(3sqrt [3](2))=

a) $\sqrt {12}\div \sqrt {3} = \sqrt{\frac{12}{3}} = \sqrt{4} = 2$<br /><br />b) $\sqrt {50}\div \sqrt {2} = \sqrt{\frac{50}{2}} = \sqrt{25} = 5$<br /><br />c) $\frac {\sqrt {49}}{\sqrt {25}} = \sqrt{\frac{49}{25}} = \sqrt{1.96} = 1.4$<br /><br />d) $\frac {12\sqrt [3]{6}}{3\sqrt [3]{2}} = \frac{12}{3} \times \sqrt[3]{\frac{6}{2}} = 4 \times \sqrt[3]{3} = 4\cdot\sqrt[3]{3}$