alse">)</mo>
</math></span><span class="rightMathLabel">(2<i>a</i>)</span></span> If you want to learn more about these, go to <a id="xd37e1866" href="test-backmatter-2.xhtml#xd37e1866ext">Wikipedia</a>.</p></div><div class="footnotes"><hr class="fnsep"/><div class="footnote-body"><div xmlns:epub="http://www.idpf.org/2007/ops" class="fndiv" id="xd37e1852" epub:type="footnote"><p class="footnote"><span class="fnlabel"><a class="noteRef" href="test-ch11.xhtml#xd37e1852src" title="Return to note 1 in text.">1<