Question
Answer
$$5\sqrt{45}\cdot3\sqrt{88}\cdot\dfrac{1}{2}=45\sqrt{110}$$
Explanation
| $$ \begin{aligned}5\sqrt{45}\cdot3\sqrt{88}\cdot\frac{1}{2}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}45\sqrt{110}\end{aligned} $$ | |
| ① | $$ \frac{ 15 }{ 2 } \sqrt{ 3960 } =
\frac{ 15 }{ 2 } \sqrt{ 6 ^2 \cdot 110 } =
\frac{ 15 }{ 2 } \sqrt{ 6 ^2 } \, \sqrt{ 110 } =
\frac{ 15 }{ 2 } \cdot 6 \sqrt{ 110 } =
45 \sqrt{ 110 } $$ |
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