2022高一·全国·专题练习
1 . 如图所示,在平行四边形ABCD中,BC=2BA,∠ABC=60°,作AE⊥BD交BC于点E,求证BE∶EC=2∶3.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/b61ec144-b25f-4e4a-8ae0-cba5af5a6158.png?resizew=145)
您最近一年使用:0次
名校
2 . 已知平行四边形ABCD,
,AD⊥BD,E、F分别为AC上2个三等分点.
=
,
=
,|
|=1.,判断DE、BF的位置关系并用向量方法加以证明,求
的值
(2)已知A(1,1),B(5,1),求D点坐标及
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5ae3525aa482c821f7c2402cdb0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa5e480dbb1503156d66b30f0e4e4e9.png)
(2)已知A(1,1),B(5,1),求D点坐标及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5042ed4b58d540d0120f8019f29f3f.png)
您最近一年使用:0次
2022-04-06更新
|
347次组卷
|
4卷引用:湖南省衡阳市田家炳实验中学2021-2022学年高一下学期3月月考数学试题
湖南省衡阳市田家炳实验中学2021-2022学年高一下学期3月月考数学试题山东省莱西市第一中学2022-2023学年高一下学期第一次月考数学试题(已下线)高一数学下学期第一次月考模拟试卷(三角函数+平面向量+解三角形)-【题型分类归纳】2022-2023学年高一数学同步讲与练(人教A版2019必修第二册)江苏省启东中学2023-2024学年高一下学期第一次月考数学试卷
2022高一·全国·专题练习
3 . 如图,在平行四边形
,
,
,
为
的中点,点
在
上,且
.
![](https://img.xkw.com/dksih/QBM/2022/1/7/2889471518752768/2955919527010304/STEM/5e532251-7cfb-4771-a6e6-07ddc1ebd82c.png?resizew=187)
(1)当
时,证明:
、
、
三点共线;
(2)若
、
、
三点共线,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46927389fcb9c1ab2d8fb4bc1e60793a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fed0e4135ea42366959e4e305bd7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c84971ca2ec33cb3b74a8b538bfc8c6.png)
![](https://img.xkw.com/dksih/QBM/2022/1/7/2889471518752768/2955919527010304/STEM/5e532251-7cfb-4771-a6e6-07ddc1ebd82c.png?resizew=187)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.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/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
名校
4 . 如图,在长方形
中,E为边
的中点,F为边
上一点,且
.设
,
.
![](https://img.xkw.com/dksih/QBM/2022/3/18/2938674037768192/2940499691495424/STEM/aa9a17055f144feea5a7b0c8f154ad8e.png?resizew=189)
(1)试用基底
表示
,
;
(2)若
,求证:E,G,F三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/571662e11cff4b9a48a3cdf8704977d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b536ac375a0b74e9c7efbc585f987f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c4abd10ab43ce90743bd0f79b1f5bfc.png)
![](https://img.xkw.com/dksih/QBM/2022/3/18/2938674037768192/2940499691495424/STEM/aa9a17055f144feea5a7b0c8f154ad8e.png?resizew=189)
(1)试用基底
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e22c0e0b78ae0ce1a0fb6ca107f6658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2173a791f504749b01c97b951be4b940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1307cc4692a34308f7e534e56882b76f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e56a5768de5478030b88d058a841ad.png)
您最近一年使用:0次
2022-03-20更新
|
681次组卷
|
2卷引用:重庆市第八中学2021-2022学年高一下学期第一次月考数学试题
名校
解题方法
5 . 如图,在直角三角形ABC中,
,
,
,
,
,其中
,
,设DE中点为M,AB中点为N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/e056c642-4570-4ee1-a6c3-9184732fa975.png?resizew=219)
(1)若
,求证:C、M、N三点共线;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f149e83812e72efd7dd3dfc78d0134ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2964fea2c107bbfd4a07fc97f4de5988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4b6c682d7b0741fb1f12a073394fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4fa6fce1a8d2a9c8f26fa82445ea8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44eb5d2938429659b5902a89be69f580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/498f1dc84ac63d1c8b2e8a28f2bb54a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/15/e056c642-4570-4ee1-a6c3-9184732fa975.png?resizew=219)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a4480988244a9d04ec293975db2cc0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f371d431b6c91972b742c426c8a81ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084709e143b7574e8369e2902884ba92.png)
您最近一年使用:0次
20-21高一·全国·课后作业
解题方法
6 . .如图,在△OAB中,
,AD与BC交于点M,设
在线段AC上取一点E,在线段BD上取一点F,使EF过M点,设
=p
,
=q
,求证:
+
=1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bebc91fbc1d72246efe3cd7171a4d993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03b9ac5f8ad36bd32c52cb18e305cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b52fad476f828f36de6eb8910497329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08493c1e001d85731cb4863ec38857fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85742436dbed979be92d4c2d074f792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4769889c5cb521cd1348332b543cbb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/02babc11-2048-46fa-881b-4a7062c53c7a.png?resizew=181)
您最近一年使用:0次
名校
解题方法
7 . 探究与实践告诉我们:平面上不共线的三个点O、A、B,对平面上任意一点P,都有实数
与
,使得
,且A、B、P三点共线的充要条件是
.已知
中,过重心G的直线交线段AB于P,交线段AC于Q,设
的面积为
,
的面积为
,
,
.根据阅读材料的内容,解决以下问题:
(1)求证:
;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bca4c0ab83a3ca3b0ebf03281be74f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6096acdd2d0ce16e1e45397ec5e365d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fbb44c49976c1a07daf42a8df29480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb28dd61871a296ec19e7b6028774a6.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7aaba80aaeefc1d254e81cd4512d91.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
解题方法
8 . 设O为
内任一点,且满足
.
(1)若D,E分别是边BC,CA的中点,求证:D,E,O三点共线;
(2)求
与
的面积之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7d9f95385876b8ea36f53bd0b1d51d.png)
(1)若D,E分别是边BC,CA的中点,求证:D,E,O三点共线;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf9680f74a9ac5d934304654ce2771.png)
您最近一年使用:0次
名校
解题方法
9 . 在等边
中,
,点
为
的中点,
交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/d141659d-41dd-430f-a31f-ff9835dde0b9.png?resizew=168)
(1)证明:点
为
的中点;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bdf26292f2316f135fdd07a8269ee7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/d141659d-41dd-430f-a31f-ff9835dde0b9.png?resizew=168)
(1)证明:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f9bab750237301bd7cc234ceb9f64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-10-10更新
|
820次组卷
|
4卷引用:广东省广州市二中2021-2022学年高一下学期第一次月考数学试题
广东省广州市二中2021-2022学年高一下学期第一次月考数学试题青桐鸣2022届高三上学期10月大联考数学(理科)试题(已下线)考点22 平面向量在平面几何、物理中的应用-备战2022年高考数学典型试题解读与变式河南省濮阳市南乐县第一高级中学2022-2023学年高三上学期9月月考理科数学试题
名校
10 . 如图,平行四边形ABCD中,
.
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946577665048576/2948635542429696/STEM/003c8521-a03f-4968-a374-e5ebccebb23e.png?resizew=187)
(1)若
,E为AM中点,求证:点D,E,N共线;
(2)若
,求
的最小值,以及此时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d58684e59bd0cbf2d59589fcd5baa9.png)
![](https://img.xkw.com/dksih/QBM/2022/3/29/2946577665048576/2948635542429696/STEM/003c8521-a03f-4968-a374-e5ebccebb23e.png?resizew=187)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ef664c0aedbd692693ea4a376fa9f4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30657d2a85e16c8f38f97e45ab1ac5ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c995e7d79ebfc21814113ae1b15c8569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c7127e3ffa52e588c100d8e6c70f40.png)
您最近一年使用:0次
2022-04-01更新
|
1019次组卷
|
5卷引用:山西省运城市2021-2022学年高一下学期3月阶段性检测数学(A)试题