名校
1 . 如图,在直角
中,角
为直角,点
是
边的中点,点
满足
,点
是
边上的动点.
是
边上靠近
的三等分点,设
,求
的值;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c25b4eaeb8a21232237508c8f5c6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb9eaea06e0523a695a16fd1921d56c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075c7c1a177dd21015775509836522e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6031ae3a08959dc93df0b09c11f113d.png)
您最近一年使用:0次
2023-07-27更新
|
530次组卷
|
4卷引用:贵州省安顺市2022-2023学年高一下学期期末教学质量监测数学试题
贵州省安顺市2022-2023学年高一下学期期末教学质量监测数学试题(已下线)第三节 平面向量的数量积及应用 B素养提升卷吉林省长春市东北师范大学附属中学2023-2024学年高一下学期5月期中考试数学试题(已下线)高一下学期期末复习解答题压轴题二十四大题型专练(1)-举一反三系列(人教A版2019必修第二册)
2 . 如图,在平行四边形
中,
,
,
,点
,
分别为
,
上的点,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/092f08fd-e860-4b4b-a18d-e8687c308ffa.png?resizew=227)
(1)若
,求
,
的值;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02c25b95e61557eec096de150ab873f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0ce7aaca2b6725dac7ed5d2a437aa1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/092f08fd-e860-4b4b-a18d-e8687c308ffa.png?resizew=227)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa594ddd5ba12c1803891fbeb1e00aba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d2818d4c102c63e020d09032589dd9.png)
您最近一年使用:0次
名校
3 . 在
中,内角
,
,
的对边分别为
,
,
.已知向量
,
,且
.
(1)求角
的大小;
(2)若
,
,求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f98a1d74c832a09544fac815c39c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d03f4ae14627390a09bba0223c342c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d070c5939bb0ec4a9d40d7e3c7d3f.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2b7db8565506b92293f4a15ec9e61e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b6afafae50d87d0ecf3ae0e0103b0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-04-26更新
|
520次组卷
|
3卷引用:贵州省毕节市金沙县实验高级中学2023-2024学年高一下学期第一次月考数学试题
名校
解题方法
4 . 如图,在矩形
中,
,
,点
为
的中点,点
在边
上,且
,则
的值是_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbeeb7c48b81e45fecab2d706343d65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7751f0e57ac77a0651f1387d06bdb64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/566524e4-8c08-4dc1-baba-db8cddc0da40.png?resizew=80)
您最近一年使用:0次
2020-10-17更新
|
384次组卷
|
2卷引用:贵州省遵义市航天高级中学2020-2021学年高二上学期第一次月考数学试题