<PRE><B>Question 763963</B>
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Take each of the given intervals and test the value of the function at each end of the interval.  Chose the interval where the value of the function has a different sign on one end then on the other.  If one of the endpoints of an interval just happens to be a zero, discard that choice unless it is a closed interval on the end that has the 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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