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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E90">Th66</font></span>: <a NAME="T66"><span class="comment"><font color="firebrick">:: SINCOS10:66</font></span><br/></a><div class="add"><a href="sincos10.html#K2" title="SINCOS10:func.2">arcsec2</a> <a href="partfun1.html#K1" title="PARTFUN1:func.1">*</a> <span class="p1">(<span class="default"><a href="fdiff_9.html#K1" title="FDIFF_9:func.1">sec</a> <a href="partfun1.html#K2" title="PARTFUN1:func.2">|</a> <span class="p2"><a href="rcomp_1.html#K4" title="RCOMP_1:func.4">].</a><span class="default"><span class="p3">(<span class="default"><a href="sin_cos.html#K28" title="SIN_COS:func.28">PI</a> <a href="xcmplx_0.html#K7" title="XCMPLX_0:func.7">/</a> 2</span>)</span>,<a href="sin_cos.html#K28" title="SIN_COS:func.28">PI</a></span><a href="rcomp_1.html#K4" title="RCOMP_1:func.4">.]</a></span></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="partfun2.html#K1" title="PARTFUN2:func.1">id</a> <span class="p1"><a href="rcomp_1.html#K4" title="RCOMP_1:func.4">].</a><span class="default"><span class="p2">(<span class="default"><a href="sin_cos.html#K28" title="SIN_COS:func.28">PI</a> <a href="xcmplx_0.html#K7" title="XCMPLX_0:func.7">/</a> 2</span>)</span>,<a href="sin_cos.html#K28" title="SIN_COS:func.28">PI</a></span><a href="rcomp_1.html#K4" title="RCOMP_1:func.4">.]</a></span> <span class="kw">by</span> <span class="lab"><a class="txt" href="sincos10.html#E62"><span class="lab"><font color="Green" title="E42">Lm26</font></span></a>, <a class="ref" href="sincos10.html#T26" target="_self" onmouseover="rs('sincos10/T26')" onmouseout="rh()">Th26</a>, <a class="ref" href="funct_1.html#T39" onmouseover="rs('funct_1/T39')" onmouseout="rh()">FUNCT_1:39</a></span>;<br/></div></div>
