Merge branch 'section-11.1' of https://github.com/clark-archer/mooculus…

… into development

public/textbook/antiderivatives.tex

@@ -343,7 +343,7 @@ \subsection*{Final Thoughts}
 \begin{exercise}
 $\int \left(\frac{15}{x}+x^{15}\right)\d x$
 \begin{answer}
-$15\ln(x) + x^{16}/16 + C$
+$15\ln|x| + x^{16}/16 + C$
 \end{answer}
 \end{exercise}