3 years ago

HELP ME PLEASE!!!!

1 answer:

7 0

$\dfrac{5}{\sqrt{10}}=\dfrac{5\cdot\sqrt{10}}{\sqrt{10}\cdot\sqrt{10}}=\dfrac{5\sqrt{10}}{10}=\dfrac{5\sqrt{10}}{5\cdot2}=\dfrac{\sqrt{10}}{2}\\\\\\\text{Used:}\sqrt{a}\cdot\sqrt{a}=a$

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