Question

Raționalizati numitorii fractiilor:
$\frac{1}{ \sqrt{11} \frac{1}{3 \sqrt{3}$

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Answer 1

Răspuns:

$\frac{1}{\sqrt{11} } =\frac{1*\sqrt{11} }{\sqrt{11} *\sqrt{11} }=\frac{\sqrt{11} }{(\sqrt{11} )^{2}}=\frac{\sqrt{11} }{11} \\\frac{1}{3\sqrt{3} }=\frac{\sqrt{3} }{3*(\sqrt{3})^{2} }=\frac{\sqrt{3} }{3*3}=\frac{\sqrt{3} }{9}$

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