Question

$\frac{ 4 \sqrt{7} }{14} \div \frac{1}{ \sqrt{7} }$
Dau coroana

Answer 1

$\it \dfrac{4\sqrt7}{14}:\dfrac{1}{\sqrt7}= \dfrac{4\sqrt7}{14}\cdot\dfrac{\sqrt7}{1}=\dfrac{4\cdot7}{14}=\dfrac{28}{14}=2$