Question

a) 1
$3 - \sqrt{6}$
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Answer 1

Resposta:

Explicação passo a passo:

$\frac{1}{3-\sqrt{6} } =$

$\frac{1.(3+\sqrt{6} ) }{(3-\sqrt{6}).(3+\sqrt{6}) } =$

$\frac{3+\sqrt{6} }{(3)^{2}-(\sqrt{6} )^{2} } =$

$\frac{3+\sqrt{6} }{9-6} =$

$\frac{3+\sqrt{6} }{3}=$

$1+\frac{\sqrt{6} }{3}$