名校
解题方法
1 . 在△ABC中,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a27dc396251a4453094d19baa79816.png)
___________ ,若动点F在线段AC上,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4f0c1c9cca0555906d8a53e1a6803d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23b3132ee4ecd6fa68a8492853b1057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835c5d0cd7e9863d353bc40f67aad117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e21c601165e688406b90377c591393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a27dc396251a4453094d19baa79816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1de87b1aeaeb7ba1cf3b205eaf441cae.png)
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2022-05-10更新
|
2020次组卷
|
9卷引用:天津市十二区县重点学校2022届高三下学期毕业班联考(一)数学试题
天津市十二区县重点学校2022届高三下学期毕业班联考(一)数学试题天津市七校联考2022-2023学年高三下学期总复习质量调查(一)数学试题天津市第四中学2023届高三高考热身数学试题天津市实验中学滨海学校2023-2024学年高三上学期第一次质量检测数学试题天津市河西区第四十二中学2024届高三上学期第二次月考数学试题(已下线)2022年高考天津数学高考真题变式题4-6题(已下线)2022年高考天津数学高考真题变式题13-15题(已下线)10.2 平面向量的数量积(精讲)(已下线)6.2.4 向量的数量积 (精讲)(2)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
名校
2 . 如图,在菱形
中,
,
,
、
分别为
、
上的点,
,
,若线段
上存在一点
,使得
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267e1fca278ad073e7a67642ababf077.png)
____ ;若
,则
的最大值为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acd69f9a7b4f4b7176eba8a2388631c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c0f3e6987b64c46a9fddbf1588510b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb064f478d74e6a2af2553206f875b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267e1fca278ad073e7a67642ababf077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05684d6873a8805e13bd454d8070389a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946c6eb9d2c645f5eb5bed799b3b8137.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/75b82c47-05c7-4cd3-b437-cf6635da3513.png?resizew=202)
您最近一年使用:0次
2022-05-03更新
|
945次组卷
|
4卷引用:天津市滨海新区塘沽第一中学2022届高三下学期高考适应性测试数学试题
名校
3 . 在矩形ABCD中,
,
,P是对角线AC上一点,
,过点P的直线分别交DA的延长线、DC于M,N,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6843672f1765682d7b4670d1960fdc4.png)
___________ ,若
,
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfea554ca3c2d6d99c1d1ea1ea601697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6843672f1765682d7b4670d1960fdc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e6160694d8be9cfa27d0757467eb528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa3a1c721a29edc49bc3cdb308a50fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9817a48b819ab971e79bad7b20250294.png)
![](https://img.xkw.com/dksih/QBM/2022/4/26/2966573086343168/2967920796311552/STEM/fbe7df30-a142-4ba4-9a8e-8782d0b4fed0.png?resizew=181)
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2022-04-28更新
|
1218次组卷
|
2卷引用:天津市河东区2022届高三下学期一模数学试题
名校
4 . 如图,在
中,
是
边上的一点(不含端点),则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98da0a2a63ad3565e903ffae284f895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12cd088a6f16ee92bb314494426f11c.png)
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957147855527936/2957495570079744/STEM/e418805e-f3f3-4d3f-99dd-daa0b569f5b0.png?resizew=200)
您最近一年使用:0次
名校
5 . 已知椭圆C:
的左、右焦点分别为
(-c,0),
(c,0),点A(0,b)满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b768cfd120deac1ac4c6c1cb7fe386.png)
(1)求C的方程.
(2)设过
的直线
,
的斜率分别为
,
,且
,
与C交于点D,E,
与C交于点G,H,线段DE与GH的中点分别为M,N.判断直线MN是否过定点.若过定点,求出该定点;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b768cfd120deac1ac4c6c1cb7fe386.png)
(1)求C的方程.
(2)设过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4cc51d393a94365f7008de5eae8879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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2022-04-04更新
|
806次组卷
|
3卷引用:天津市第三中学2022届高三下学期三模数学试题
名校
解题方法
6 . 如图,平行四边形
中
,
,
,
,
,设
,
,用
,
表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ead0d95d94c4650f8030f18e5d58b.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b08895d449fc3930fb50c0fa5c2f072.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b506c24f554901249694f21d9621b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558098da135bc12e7fdca05d14c3848e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7a93a1399ff7a2bde342652479241b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b54aa2b7f9adf409f0ce8e00615432.png)
![](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/7d0ead0d95d94c4650f8030f18e5d58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b08895d449fc3930fb50c0fa5c2f072.png)
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2022-03-29更新
|
451次组卷
|
3卷引用:数学(天津卷01)
名校
7 . 如图是由两个有一个公共边的正六边形构成的平面图形
,其中正六边形边长为1.设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
________ ;
是平面图形
边上的动点,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5debfa10a860aa531003db3de20d0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62781e998c5d72e938d57ed2cf555a10.png)
![](https://img.xkw.com/dksih/QBM/2022/3/18/2938998989365248/2941860681621504/STEM/10cf25fdff6b45099241b30ebd6c331b.png?resizew=178)
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2022-03-22更新
|
1939次组卷
|
8卷引用:天津市滨海新区塘沽第一中学2022届高三下学期线上教学调研(一模)数学试题
名校
解题方法
8 . 已知椭圆
的左、右焦点分别为
,
,
为上顶点,
,原点
到直线
的距离为
.
(1)求椭圆的方程;
(2)设斜率不为0的直线
过点
,与椭圆交于
,
两点,若椭圆上一点
满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43451d6cc2505454d77443916b587563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)设斜率不为0的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57455f7a65f8e95adbeef063c6ebae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-03-15更新
|
956次组卷
|
3卷引用:天津市河西区2021-2022学年高三上学期期末数学试题
9 . 如图,在四边形
中,
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bf6c5c852705f9f10fc59e9a2d1694.png)
___________ ;设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffbcd82b98a9ae69aa4ee28bb49a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1721f5eb9a589d1185a3d1dd225f6a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f733427e678b2bb7ad490b1a2e2e379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bf6c5c852705f9f10fc59e9a2d1694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ba90ce51206e89a4b714d7854557a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://img.xkw.com/dksih/QBM/2022/3/3/2928293731328000/2936796197675008/STEM/021bae79-cd8e-4c11-922a-98405986f6c3.png?resizew=227)
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2022-03-15更新
|
970次组卷
|
4卷引用:天津市部分区2021-2022学年高三上学期期末数学试题
名校
解题方法
10 . P是边长为1的等边三角形ABC的边BC上一点,且
,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6411569e840347b32c2482b116e008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43248ee9e11da124aefabf4b9d6e7fa.png)
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2022-03-13更新
|
1201次组卷
|
3卷引用:天津市河北区2021-2022学年高三上学期期末数学试题