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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E52">Th52</font></span>: <a NAME="T52"><span class="comment"><font color="firebrick">:: SIN_COS9:52</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">r</font> being   <a href="xreal_0.html#NM1" title="XREAL_0:NM.1">Real</a>  st  <a href="xcmplx_0.html#K4" title="XCMPLX_0:func.4">-</a> 1 <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> <font color="Olive" title="b1">r</font> &amp; <font color="Olive" title="b1">r</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> 1 holds <br/> <a href="sin_cos4.html#K2" title="SIN_COS4:func.2">cot</a> <span class="p1">(<span class="default"><a href="sin_cos9.html#K4" title="SIN_COS9:func.4">arccot</a> <font color="Olive" title="b1">r</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">r</font></div></div>
