Question

50 pontos;
Efetue:
$\sqrt{\sqrt{6} - \sqrt{2} } . \sqrt{\sqrt{6} + \sqrt{2}}$

Answer 1

Resposta:

$\sqrt{\sqrt{6} -\sqrt{2} } . \sqrt{\sqrt{6} + \sqrt{2} } \\\sqrt{(\sqrt{6} - \sqrt{2}). (\sqrt{6} + \sqrt{2})} } \\\sqrt{\sqrt{6}^{2} - \sqrt{2}^{2} } } \\\sqrt{6 - 2} \\\sqrt{4} = 2$