<PRE><B>Question 789969</B>
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They are all correct if you use the function


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ f(x)\ =\ -\frac{1}{3}x^4\ +\ \frac{8}{3}x^3\ -\ \frac{20}{3}x^2\ +\ \frac{37}{3}x\ +\ 11]


Where *[tex \Large a_0\ =\ 12] and so on.  


You need to define the function you want to use to describe your sequence.  The point is that ANY five number sequence can be exactly modeled by a 4th degree polynomial function. 


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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