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1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3323347f6f9a359b4500cadbe1f2ecb7.png)
(1)写出函数的单调递减区间;
(2)设
,求
的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3323347f6f9a359b4500cadbe1f2ecb7.png)
(1)写出函数的单调递减区间;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9105ca8bf7775f0efcb7bb8c6d80cad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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2 . 关于函数
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e598305e3d7d153d9dbfd7182750a20.png)
A.![]() ![]() |
B.![]() ![]() |
C.函数![]() ![]() |
D.将![]() ![]() ![]() |
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2024-05-11更新
|
639次组卷
|
2卷引用:广东省汕头市潮阳区河溪中学2023-2024学年高一下学期期中考试数学试题
名校
解题方法
3 . 已知
的内角
的对边分别为
,且
.
(1)求角
的大小;
(2)若
的面积为
,求
的周长和外接圆的面积;
(3)若
,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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43786ef3d1325cfee6a688120c698dbe.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fcbf7eacfca2a0e449b8bbfe4f15f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9d830c9dd701fe124f9aecd5cecb9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c660a6c5ac85018905f7cddd186b8bd0.png)
您最近一年使用:0次
2024-05-11更新
|
992次组卷
|
2卷引用:广东省汕头市潮阳实验学校2023-2024学年高一下学期期中考试数学试题
名校
解题方法
4 . 在
中,角
的对边分别为
,已知
.
(1)若
,求
外接圆的面积;
(2)若
为锐角三角形,求
的取值范围.
![](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/8fac8bafb7fc055d3ac713b9da7fba4a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413323ab92f73c1eabb235731bb5c399.png)
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5 . 在平面直角坐标系
中,点
、
、
满足:
在
轴的正半轴上,
的横坐标是
,
,
.记
是锐角,
是钝角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/529171262f22e6d81f576a16817fa85d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f529f96662d08336c687c3abc65a3850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ab8faef2a917438dd810823cdcc78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb51f3e5cf5114c25cf81068d7f5fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46703c65ecd8a0c5a8754b60566db05b.png)
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解题方法
6 . 对于
中,有如下判断,其中正确的判断是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.点![]() ![]() ![]() ![]() ![]() ![]() |
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解题方法
7 . 对于
,下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.存在![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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解题方法
8 . 已知
,则
的最小正周期为______ ,
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e078bffc5aa18a9488e08280efe3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a030d54b4b38ae441519431c534b81c.png)
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解题方法
9 . 如图,在
的边上做匀速运动的点
,当
时分别从点
,
,
出发,各以定速度向点
前进,当
时分别到达点
.
,点
为三角形
的重心,试用向量
线性表示
(注:三角形的重心为三角形三边中线的公共点)
(2)若
的面积为
,求
的面积的最小值.
(3)试探求在运动过程中,
的重心如何变化?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927456b0989846a2f1573844bbaa2105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.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/2ba399f21f2a4f9b94066ea578865a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba399f21f2a4f9b94066ea578865a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ba495e8f9fe02229a4248fdbfb4710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2caf2e65bebc1523f8e89b59a90f2ab.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(3)试探求在运动过程中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
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10 . 已知
,
.
(1)求
在
方向上的投影向量;
(2)已知向量
,满足
,且
,求一个
.
(3)求三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2c14d400a36573a28a41040f1a27b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c731a50768d1377e185f2aece102a88.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01aff5fdd191b5a181820342d458e0e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555585ed301898b926716324cd4f0c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
(3)求三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
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