Question
Answer
$$\sqrt{\dfrac{6}{20}}=\dfrac{1}{10}\sqrt{30}$$
Explanation
| $$ \begin{aligned}\sqrt{\frac{6}{20}}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{1}{10}\sqrt{30}\end{aligned} $$ | |
| ① | $$ \sqrt{ \frac{ 3 }{ 10 } } = \frac{ \sqrt{ 3 } } {\sqrt{ 10 }}
= \frac{ \sqrt{ 3 } } {\sqrt{ 10 }} \cdot \frac{ \sqrt{ 10 } } {\sqrt{ 10 }} = \\
= \frac{ \sqrt{ 30 }} { 10 } = \frac{ 1 }{ 10 } \sqrt{ 30 } $$ |
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