名校
解题方法
1 . 已知
,若过定点
的动直线
:
和过定点
的动直线
:
交于点
(
与
,
不重合),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e5878710df0a5195ece5284dbe0ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9ec8848a033100be47ce8df423103e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() ![]() | B.直线![]() ![]() |
C.![]() | D.![]() ![]() |
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2 . 如图,在长方体
中,
,
,点
满足
,点
在底面
的边界及其内部运动,且满足
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/17458806-15b9-4331-8fd6-9feff5b33378.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5441d73845911db1993bf903c4d8700f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d927585a17c2e98ef7d5a9589a26ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93dab41e3f7e907cc9a890eb3171c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfa0678101516f673cbfc7aad4f8d71.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/17458806-15b9-4331-8fd6-9feff5b33378.png?resizew=185)
A.点![]() ![]() | B.线段![]() ![]() |
C.有且仅有一个点![]() ![]() | D.四面体![]() ![]() |
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3 . 在下列情况中三角形解的个数唯一的是( )
A.![]() ![]() ![]() | B.![]() ![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
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名校
4 . 已知函数
,下列说法正确的有( )
①函数
最小正周期为
;
②定义域为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7365b505b59c406626d9c7c366b2ae39.png)
③
图象的所有对称中心为
;
④函数
的单调递增区间为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7740700bfca5499f0775a290e435b5.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
②定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7365b505b59c406626d9c7c366b2ae39.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fae88e994bff7cfc971a4b3da743ccf.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1322187b3f924cece2bef790d698d091.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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5卷引用:河北省石家庄二中实验学校2023届高三上学期9月开学考试数学试题
5 . 设函数
,该函数图象上相邻两个最高点间的距离为
,且
为偶函数.
(1)求
和
的值;
(2)已知角
,
,
为
的三个内角,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac61b261f522fc305f3dc98eaa4ef33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9609625b502348556ff8ba32deac8caa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)已知角
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b0efbeca95f057612a7b5891d21aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c16303d33332f107e9c264f67b430a.png)
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6 . 一艘轮船航行到A处时看灯塔B在A的北偏东
,距离12
海里,灯塔C在A的北偏西
,距离为12
海里,该轮船由A沿正北方向继续航行到D处时再看灯塔B在其南偏东
方向,下面结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c12aeebfa1af16f325c98a43bb08c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() |
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7卷引用:河北省石家庄北华中学2023届高三上学期期末(线上)数学试题
河北省石家庄北华中学2023届高三上学期期末(线上)数学试题福建省福州市八县(市)协作校2021-2022学年高一下学期期末联考数学试题余弦定理、正弦定理应用举例(已下线)第六章 平面向量及其应用 讲核心 02福建省将乐县第一中学2022-2023学年高一下学期第一次月考数学试题(已下线)模块五 专题2 全真能力模拟(人教B)福建省泉州市第六中学2022-2023学年高一下学期期中模块测试数学试题
7 . 函数
,(
,
)部分图象如图所示,下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/22/216c361c-2f76-402f-8ca1-cd59874164a9.png?resizew=147)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d324cae510d98073af49fbe3efbe43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2beca048c49eabc0dc8d7d189aa9db.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/22/216c361c-2f76-402f-8ca1-cd59874164a9.png?resizew=147)
A.函数![]() ![]() |
B.函数的单调增区间为![]() |
C.函数![]() ![]() |
D.为了得到函数![]() ![]() ![]() |
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8 . 为迎接冬奥会,石家庄准备进行城市绿化升级,在矩形街心广场
中,如图,其中
,
,现将在其内部挖掘一个三角形空地
进行盆景造型设计,其中点
在
边上,点
在
边上,要求
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/99489804-568c-49ba-8585-c91e45a386ad.png?resizew=156)
(1)若
,判断
是否符合要求,并说明理由;
(2)设
,写出
面积的
关于
的表达式,并求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403835c4ecd73eddf4678656f3b9ef3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5412c2c0baa2fc01485358af68d6e885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4984ee07d47dbcc4705137cd6d931d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0283a4561358eb223d6c9a811a0b1cb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/99489804-568c-49ba-8585-c91e45a386ad.png?resizew=156)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb031dc128a612ba16a072d7701ea79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129f1d6567bef09b00b7f37894e6dba7.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4caaf8b6a7b0c1d90fe74e1e05210a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129f1d6567bef09b00b7f37894e6dba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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名校
解题方法
9 . 下列命题中,正确的是( )
A.在![]() ![]() ![]() |
B.在锐角![]() ![]() |
C.在![]() ![]() ![]() |
D.在![]() ![]() ![]() ![]() |
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名校
解题方法
10 . 在
中,内角
的对边分别为
.已知
.
(1)求
;
(2)若
的面积为
,且
为
的中点,求线段
的长.
![](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/106bc7fc7b1567d8600c280a105b7348.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2de2292904b991fbd7b1ef30e7203b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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