Question

`\sqrt[3]{-100}`? Please help.

Answer 1

-∛100

Decimal : -4.64158...

Explanation:

`\sqrt[3]{-100}\\\\\mathrm{Apply\:radical\:rule}:\\\quad \sqrt[n]{-a}=-\sqrt[n]{a},\:\quad \mathrm{if\:}n\mathrm{\:is\:odd}\\\\\sqrt[3]{-100}=-\sqrt[3]{100}`