Spifflicating with Spivak's Calculus

Continuing on from my collection of humorous mathematical aphorisms, today&rsquo;s excerpt is an exercise from Calculus by Michael Spivak (4 ed.). Chapter 10, Question 2 . Find $f'(x)$ for each of the following functions $f$. (It took the author 20 minutes to compute the derivatives for the answer section, and it should not take you much longer: Although rapid calculation is not the goal of…