<p style="line-height: 150%"><span style=";font-family:'Times New Roman';font-size:14px">1.<span style="font-family:宋体">理解同角三角函数的基本关系式：</span><span style="font-family:Times New Roman">sin</span></span>^{<span style=";font-family:'Times New Roman';font-size:14px;vertical-align:super">2</span>}<em><span style="font-family: 'Times New Roman';font-size: 14px">x</span></em><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">＋</span>cos</span>^{<span style=";font-family:'Times New Roman';font-size:14px;vertical-align:super">2</span>}<em><span style="font-family: 'Times New Roman';font-size: 14px">x</span></em><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">＝</span>1<span style="font-family:宋体">，sin x/</span></span>cos x<span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">＝</span>tan </span><em><span style="font-family: 'Times New Roman';font-size: 14px">x</span></em><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">．</span></span></p><p><span style=";font-family:'Times New Roman';font-size:14px">2.<span style="font-family:宋体">能利用单位圆中的三角函数线推导出</span></span>2(π)<span style=";font-family:'Times New Roman';font-size:14px">±</span><em><span style="font-family: 'Times New Roman';font-size: 14px">α</span></em><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">，</span>π±</span><em><span style="font-family: 'Times New Roman';font-size: 14px">α</span></em><span style=";font-family:'Times New Roman';font-size:14px"><span style="font-family:宋体">的正弦、余弦、正切的诱导公式</span>.</span></p><p>3.<span style="font-family: 宋体;">主要通过诱导公式与同角三角函数关系式的应用考查数学运算和逻辑推理能力</span><span style="font-family: &quot;Times New Roman&quot;;">.</span></p>