解题方法
1 . 如图,在
中,
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f157aab917082b835f4213ed81a3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32905649969178ac0426c6186627948d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d228c52dc920fd2f0861d4e4d7220ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89acc82cb747ff57569b0bcaf68f877d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/491bfd1c-851d-41fc-ac1f-937008314219.png?resizew=179)
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解题方法
2 . 如图,在
中,
是
边上一点,且
为直线
上一点列,满足:
,且
,设数列
,则
的通项公式为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/915ce3248a056a5a08af5723bfb2ef57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f406d1d51975809d406a561d4d9d18e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ecf69901899bba130968c7a091790d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d48868b259993d0000b7c47525ebcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://img.xkw.com/dksih/QBM/2023/1/10/3149919460646912/3150558952660992/STEM/a767481a8c704315b7d6195ed035855f.png?resizew=189)
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3 . 已知抛物线
,焦点为
,直线
交抛物线于
,
两点,
,
位于
轴两侧,且
(其中
为坐标原点),若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22905409f038387f0e954a47384b60a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f892b64a5387b655428658e6b3c686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96724b211bf3e56d588bd430aa3f2894.png)
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4 . 如图,在平行四边形
中,
,
为
的中点,
为线段
上一点,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ ;若
的面积为
,则
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b96fac11d72f72c805dbddb8da72d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6bc857253bfddc4aead964b988e0a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64daad01a771e6fc2d5f27deab488d2d.png)
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2021-07-10更新
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1717次组卷
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7卷引用:重庆市第八中学校2021-2022学年高二(艺术班)下学期期中数学试题
名校
5 . 在
中,角A为钝角,
,
,AD为BC边上的高,已知
,则y的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ffc947b8394dc01a675d05b3d4fe84.png)
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12-13高三·四川内江·阶段练习
名校
6 . 如图,菱形
的边长为2,
,
为
的中,若点
为菱形内任意一点(含边界),则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b8b98b2f83279a49e94d9f48c5e6f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92ed9c7d216873545ea59101b6ce1b.png)
![](https://img.xkw.com/dksih/QBM/2021/3/21/2682911444271104/2686044187729920/STEM/b524c75b07b64cf893553aa270fbc53e.png?resizew=182)
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2021-03-26更新
|
253次组卷
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9卷引用:重庆市綦江区南州中学高2019届高二下第三学月考试理科数学试题
重庆市綦江区南州中学高2019届高二下第三学月考试理科数学试题(已下线)2014届四川省内江六中高三第三次月考理科数学试卷(已下线)2015届福建省惠安一中等三校高三上学期期中联考文科数学试卷2015届湖北省襄阳市第五中学高三第一学期11月质检理科数学试卷【全国百强校】江西省南昌市第十中学2019届高三上学期期中考试数学(理)试题河南省南阳市第一中学校2019-2020学年高三上学期12月月考数学(文)试题江苏省南京市第二十九中学2020-2021学年高一下学期3月月考数学试题江苏省盐城市阜宁县2020-2021学年高一下学期期中数学试题宁夏回族自治区石嘴山市第三中学2022-2023学年高一下学期第一次月考数学试题
名校
7 . 已知向量
,
,
,若
是共面向量,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc1148584d5a8e70e6bd57b955d0666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a05269ae723ad42258cb06d89c5afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da198dd64c864e7bbe1af69cb53e4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3aab05482046ebd5b2487850d05273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
您最近一年使用:0次
2018-02-17更新
|
446次组卷
|
5卷引用:重庆市长寿中学校2021-2022学年高二上学期10月月考数学试题