Question

\div \sqrt{3} " alt=" \sqrt{21 } \div \sqrt{3} " align="absmiddle" class="latex-formula">

Answer 1

Answer:

$\sqrt{7}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{\frac{a}{b} }$ ⇔ $\frac{\sqrt{a} }{\sqrt{b} }$

$\frac{\sqrt{21} }{\sqrt{3} }$ = $\sqrt{\frac{21}{3} }$ = $\sqrt{7}$