1 . 若角
的终边上有一点
,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6d5435a4e440f26504ab313c43073f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb66ba8f5084a3ae830232a11b2e06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.1 | B.![]() |
C.4 | D.-4 |
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2 . 设
为第二象限角,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc9a6d1f9a5428ab91afaa436f88695.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0490aad6fbc313916ad296fc892585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc9a6d1f9a5428ab91afaa436f88695.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知
中,
则角
等于
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579044920057856/1579044920213504/STEM/0ae5f98994194ab0bf014b20f94a22b7.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579044920057856/1579044920213504/STEM/e92238fd26244c59b5213104ce8fc312.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579044920057856/1579044920213504/STEM/421689eadc394f57b73304f77a09310c.png)
A.30° | B.60° | C.150° | D.30°或150° |
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4 . 如图,在四边形
中,
,
.
(1)求
的值;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3b35fef53c9b95dde3da01391d5643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e39bee1445161f91213c83b498b8ec.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d08f0ab6e573253450e03427e13db1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c120448ac724eab5e768d1fc50c16555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/7/dc93eea7-1238-4b73-9436-334ed8185c40.png?resizew=208)
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12-13高二下·四川南充·期中
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5 . 函数
的图象的相邻两个对称中心间的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e1a96da1f889739ac7e22c2ec507e8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6 . 在
中,
、
、
所对的边分别为
、
、
,已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d75c275ee8382e21606f032c72c3777.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd3476dc91ff0180fdab52dd0dc3a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c127a85a4653195b5a51ea9230ceb2c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d75c275ee8382e21606f032c72c3777.png)
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7 . 已知函数
(其中
为正实数)的图象关于直线
对称,且
,
且
恒成立,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc523612a1605a2ba0bb24aae644c619.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d729d4e273ddcbb1a1b7ec3f152c2b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ba6d93a671ca21730facc7fbf052c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65f38a60c94e04db92cebfe6c25a77c9.png)
A.![]() |
B.不等式![]() ![]() ![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
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8 . 若
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be393328d35bea5e0ef9fb676e01228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca038f1314e22fbdb24df7024c5c7d5c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 在△
中,
为线段
上一点(不能与端点重合),
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706e774dfd32305229cf4e06b36eecc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba56b41fe702d9b6433e4d01e48d69a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb08f6a798dc293f3d8de281190f65e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
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10 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76399ed0296a8dd38b5dcec57170267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b217ef5e9f723ccc010d182b2abe1f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76399ed0296a8dd38b5dcec57170267.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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