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3 years ago

Simplify the radical expression by rationalizing the denominator.

rt%7B42%7D%20%7D%20" id="TexFormula1" title=" \frac{2}{ \sqrt{42} } " alt=" \frac{2}{ \sqrt{42} } " align="absmiddle" class="latex-formula">

Mathematics

1 answer:

Rashid [163]3 years ago

6 0

$\bf \cfrac{2}{\sqrt{42}}\cdot \cfrac{\sqrt{42}}{\sqrt{42}}\implies \cfrac{2\sqrt{42}}{(\sqrt{42})^2}\implies \cfrac{2\sqrt{42}}{42}\implies \cfrac{\sqrt{42}}{21}$

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