Are the following rational or irrational? \sqrt[3]{25} \sqrt[3]{64} \sqrt[3]{125}

asked Aug 27, 2019 149k views

1 vote

Are the following rational or irrational?

$\sqrt[3]{25}$

$\sqrt[3]{64}$

$\sqrt[3]{125}$

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7 votes

$\sqrt[3]{25}-\text{irrational}\\\\\sqrt[3]{64}=4\ because\ 4^3=64-\text{rattional}\\\\\sqrt[3]{125}=5\ because\ 5^3=125-\text{rattional}$

Zorglub answered Sep 2, 2019

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