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Let\[f(x) = \left\{ \begin{array}{cl} x^2-4 & \text{ if }x < 7, \\ x-13 & \text{ if } x \geq 7. \end{array} \right.\]What is $f(f(f(17)))$?

 Aug 29, 2020
 #3
avatar+31311 
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As follows:

 Aug 29, 2020

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