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<p><b>列表:</b>06三角恒等变换</p>
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<a href="show.php?classid=558&amp;id=32174&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.1 两角和与差的正弦、余弦、</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32175&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.2二倍角的正弦、余弦、正切</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32176&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.3 角的代换</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32177&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.4公式的逆用和变形使用</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32178&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.5辅助角的运用</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32179&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.1.6“升幂”与“降幂”公式</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32180&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.2.1 半角公式</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32181&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.2.2积化和差公式</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32182&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.2.3和差化积公式</a> <small>(09-22)</small><br />
<a href="show.php?classid=558&amp;id=32183&amp;style=0&amp;bclassid=495&amp;cid=558&amp;cpage=0">6.2.4万能公式</a> <small>(09-22)</small><br />
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