<PRE><B>Question 772490</B>
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*[tex \LARGE \frac{\sqrt{5}}{\sqrt{55}}\ =\ \frac{\sqrt{5}}{\sqrt{5\,\cdot\,11}}\ =\ \frac{\sqrt{5}}{\sqrt{5}\,\cdot\,\sqrt{11}}\ =\ \frac{1}{\sqrt{11}}]


But now you need to rationalize the denominator.  Things with rational numbers in the denominator are simpler than things with irrational numbers in the denominator.


*[tex \LARGE \frac{1}{\sqrt{11}}\ =\ \left(\frac{1}{\sqrt{11}}\right)\left(\frac{\sqrt{11}}{\sqrt{11}}\right)\ =\ \frac{\sqrt{11}}{11}]




John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
&lt;font face=&quot;Math1&quot; size=&quot;+2&quot;&gt;Egw to Beta kai to Sigma&lt;/font&gt;
My calculator said it, I believe it, that settles it
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