<PRE><B>Question 862125</B>
&lt;font face=&quot;Times New Roman&quot; size=&quot;+2&quot;&gt;


A rational expression is undefined for any value of the variable(s) that cause the value of the denominator to be zero.  To find these values for your problem, set the denominator equal to zero and solve for any real roots.  Hint: there are two such real numbers for this problem.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
&lt;div style=&quot;text-align:center&quot;&gt;&lt;a href=&quot;http://outcampaign.org/&quot; target=&quot;_blank&quot;&gt;&lt;img src=&quot;http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png&quot; border=&quot;0&quot; alt=&quot;The Out Campaign: Scarlet Letter of Atheism&quot; width=&quot;143&quot; height=&quot;122&quot; /&gt;&lt;/a&gt;&lt;/div&gt;
&lt;/font&gt;</PRE>