Question

qual é a raiz de 8?
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Answer 1

Resposta:

2,828

Explicação passo-a-passo:

Answer 2

$\sf \sqrt{8}\\\\\\\sqrt{2^3}\\\\\\2^3=2^2\cdot \:2\\\\\\\sqrt{2^2\cdot \:2}\\\\\\\sqrt{2^2\cdot \:2}=\sqrt{2^2}\sqrt{2}\\\\\\\sqrt{2^2}\sqrt{2}\\\\\\{Aplique\:as\:propriedades\:dos\:radicais}:\quad \sqrt{a^2}=a,\:\quad \:a\ge 0\\\\\\\sqrt{2^2}=2\\\\\\\to \boxed{\sf =2\sqrt{2} \approx2,82842.....}$