1 . 已知函数
.
(1)求函数
的周期及单调递增区间;
(2)在
中,三内角
,
,
的对边分别为
,
,
,已知函数
的图象经过点
,若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c817d8d09907391cba9634ac086d75af.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e297dd61553ea887d6a6f464331d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942245aece46d6fa4a771afe4ff05929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b64af28c24767dd9a64e49e5948c806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知向量
.
(1)若
∥
,求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c86f45ad94a01938a8d38b72cfb602.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43660b1543b3a2b46185f7629d28a963.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05f1d68b133c5d2f76a06186e0ffb08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de6460673e82a39ddd43c662e0ce7da.png)
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3 . 在△ABC中,
为角
的对边,若
,则
是
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572417306697728/1572417312538624/STEM/f7066fa8f27a4c76a863bf83629a896b.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572417306697728/1572417312538624/STEM/6e9e856c3590422e84adcdc7759f70e5.png)
![](https://img.xkw.com/dksih/QBM/2016/1/5/1572417306697728/1572417312538624/STEM/68cf730546bd4d3da8023cc368d7193c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
A.锐角三角形 | B.钝角三角形 | C.等腰三角形 | D.等边三角形 |
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解题方法
4 . 已知
,且函数
的最小值为
,若函数
,则不等式
的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36b7edbd8378708945cce0e9be48668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45062d6469604e71aaa54700524bd80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace4ee514b3a0bed571ef42aaf5246cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a04b2221199305aa7009fec3aa79799.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 在
中,
所对的边分别为
函数![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/34711e8899564eb9b8192b6f04e409e1.png)
在
处取得最大值.
(1)当
时,求函数
的值域;
(2)若
且
,求
的面积.
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/84f534fd1f964219aed197df4ebb0ebb.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/2a72d60eca474b609b53497a50e9c113.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/51cf1282ec5e4af19ec1ada24b2fe671.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/34711e8899564eb9b8192b6f04e409e1.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/24a7ac5bd6164628896d59d2edea53ee.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/2c0545e0ebe345c7b50d6da1c657be21.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/94152dc5a01d4333981689653aef35c5.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/16b69d52400e483da5851d77a75373b7.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/f8e5ed1c823a4aef99cea42b7045e48f.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/dd98086d5b874cdf93202e1e5b9151ee.png)
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413787348992/1572413792780288/STEM/84f534fd1f964219aed197df4ebb0ebb.png)
您最近一年使用:0次
名校
6 . 若直线
过曲线
的对称中心,则
的最小值为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360c1098f4d49b60307a93c82a6495f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1771d40ecd2acf331eb020c56b921541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc3fb42e28662b740d83e5de9a63bb2.png)
您最近一年使用:0次
2016-12-03更新
|
472次组卷
|
3卷引用:2016届江西省赣中南五校高三下学期2月第一次联考文科数学试卷
7 . 将函数
向右平移
个单位,再将所得的函数图象上的各点纵 坐标不变,横坐标变为原来的
倍,得到函数
的图象,则函数
与
,
,
轴围成的图形面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ebb7ccb30f982a77d82195c0b104c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa7fa407fb8e034a869cb868928f5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e6dffa00c6169f706858ab1596cc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a4abf89a16078efb63fca8b3d594f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
514次组卷
|
2卷引用:2016届江西省新余市四中高三上学期第三次周练理科数学试卷
8 .
中,角
的对边分别为
,已知点
在直线
上.
(1)求角
的大小;
(2)若
为锐角三角形且满足
,求实数
的最小值.
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/400404276a1944bcb83caf77d37c038d.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/49102bb3818d4844ba1b73ffb68f6cfe.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/a6141a9754964a329dada7952d74a760.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/da5d5f2598ca47c6ae5ccfeda5d55a2b.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/0f9b7fc753f5463da2632294857a774a.png)
(1)求角
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/5562f7b4c5e343bbbc9dfb7d50c8ff4f.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/400404276a1944bcb83caf77d37c038d.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/342a56fb246948058d4f09ed099e6748.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572269885472768/1572269891608576/STEM/872e3137e4764dc9bb98f4c86d5b3c64.png)
您最近一年使用:0次
2016-12-03更新
|
257次组卷
|
5卷引用:2016届江西省新余市四中高三上学期第三次周练理科数学试卷
9 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195d2271f7d94b23fdfba3952c57767d.png)
(1)把函数
的图象向右平移
个单位,再向下平移
个单位得到函数
的图象,求函数
在区间
上的最小值,并求出此时
的值;
(2)已知
中,角
的对边分别为
.若
.求a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195d2271f7d94b23fdfba3952c57767d.png)
(1)把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcae869d8a45a48f0dd8c0de6c404aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c53c1f80c10008f1e7591ecd852d972a.png)
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解题方法
10 . 在
中,角
的对边分别为
,
,
的面积为
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e661bbeca6adb364f1910ae18377d289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23725094c363fd158166a8698971694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e4123975f257306440158659634c4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cda097a4e7c41100e573d8304ee066.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed872ebf364b8df2c8f6363baee3c4de.png)
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