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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E22">Th18</font></span>: <a NAME="T18"><span class="comment"><font color="firebrick">:: SIN_COS3:18</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">z</font> being   <a href="xcmplx_0.html#NM1" title="XCMPLX_0:NM.1">Complex</a> holds  <a href="sin_cos3.html#K4" title="SIN_COS3:func.4">cosh_C</a> <a href="funct_2.html#K10" title="FUNCT_2:func.10">/.</a> <span class="p1">(<span class="default"><a href="complex1.html#K7" title="COMPLEX1:func.7">&lt;i&gt;</a> <a href="xcmplx_0.html#K3" title="XCMPLX_0:func.3">*</a> <font color="Olive" title="b1">z</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <a href="sin_cos3.html#K2" title="SIN_COS3:func.2">cos_C</a> <a href="partfun1.html#K7" title="PARTFUN1:func.7">/.</a> <font color="Olive" title="b1">z</font></div></div>
