<PRE><B>Question 777544</B>
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If a number makes a function undefined, such as a value that causes a denominator to be zero, that number would be excluded from the domain of the function.  Entire intervals may be excluded, especially in the case of real-valued functions.  For example, any set of values that causes a radicand to be less than zero.


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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